戴尔Latitude 7440 笔记本电脑评测:在某些关键领域击败Latitude 9440
戴尔Latitude 7440 Clamshell接替了去年的Latitude 7430,引入了全新的16:10机箱设计,同时还对第13代英特尔Raptor Lake-U CPU进行了常规的内部更新。Latitude 7000系列是戴尔的中高端商务机型,与旗舰机型Latitude 9000系列和更注重预算的Latitude 3000和5000系列形成鲜明对比。
我们此次评测的机型为中端配置,配备酷睿i5-1345U vPro处理器、16GB LPDDR5内存和QHD+ 2560 x 1600雾面触摸屏,售价约1900美元。其他选择包括酷睿i5-1335U或酷睿i7-1365U,配备双倍内存或分辨率较低的1200p显示屏。
该领域的竞争对手包括其他14英寸以商务为中心的子笔记本,如HP ProBook 440 G9,Lenovo ThinkPad E14 G4,MSI Prestige 14, 或Asus ExpertBook B3 Flip 。该机型的13英寸版本称为Latitude 7340,14英寸二合一版本称为Latitude 7440 2-in-1。
更多戴尔评论:
潜在的竞争对手比较
Rating | Date | Model | Weight | Height | Size | Resolution | Price |
---|---|---|---|---|---|---|---|
90.3 % v7 (old) | 07 / 2023 | Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs | 1.2 kg | 17.95 mm | 14.00" | 2560x1600 | |
85.6 % v7 (old) | 05 / 2023 | Samsung Galaxy Book3 Pro 14 i7-1360P, Iris Xe G7 96EUs | 1.2 kg | 11.3 mm | 14.00" | 2880x1800 | |
87.5 % v7 (old) | 06 / 2023 | Lenovo ThinkPad E14 G4 21EB0041GE R7 5825U, Vega 8 | 1.6 kg | 17.9 mm | 14.00" | 1920x1080 | |
85.3 % v7 (old) | 03 / 2023 | HP ProBook 440 G9-5Y3Z3EA i7-1255U, Iris Xe G7 96EUs | 1.4 kg | 20.4 mm | 14.00" | 1920x1080 | |
90.1 % v7 (old) | 04 / 2022 | Dell Latitude 7420 JW6MH i5-1145G7, Iris Xe G7 80EUs | 1.3 kg | 17.3 mm | 14.00" | 1920x1080 | |
86.6 % v7 (old) | 10 / 2022 | LG Gram 14Z90Q i5-1240P, Iris Xe G7 80EUs | 980 g | 16.8 mm | 14.00" | 1920x1200 |
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表壳 - 铝重还是镁轻?
有两种底盘可供选择:亮灰色铝合金骨架或深色镁合金骨架。前者硬度更高,但重量也更重(+200克),但两者的尺寸几乎相同。我们的评测机是镁合金版本,它的刚性肯定不如其他笔记本,如 HP Spectre x360 14或 ThinkPad Titanium.例如,试图扭转底座或盖子,会产生更多的吱吱声。
此外,我们还可以注意到Latitude 7440 的设计存在缺陷。底板的两个前角都有螺丝固定,但边缘中央却没有。因此,底板的前边缘容易弹出,并在材料之间留下明显的缝隙。在这里安装一个简单的螺丝就可以轻松解决这个问题。
由于从以前的16:9改成了16:10,新机型比以前的机型更方正。它也比以前厚了大约半毫米。许多基于消费者的超极本(如XPS 13)都是如此、LG Gram 14或Galaxy Book3 Pro 14等许多消费型超极本都明显更薄,但集成的功能却更少。
连接性 - 不再需要SD读卡器
与Latitude 7420 相比,端口位置发生了潜在的变化。例如,两个USB-C端口现在都位于左侧边缘,而不是两侧各一个。这意味着Latitude 7440只能从左侧充电,这对于某些办公空间来说可能不是最佳选择。
竞争机型,如ProBook 440 G9或ThinkPad E14 G4与我们的戴尔不同,它们都配备了集成的RJ-45端口,但USB-C端口较少。
通讯
英特尔AX211标配Wi-Fi 6E和蓝牙5.3连接。当与华硕AXE11000 6GHz网络配对时,传输速率将是可靠和稳定的。
英特尔5000 DW5931是5G WWAN连接的可选升级产品。
Networking | |
iperf3 transmit AX12 | |
Dell Latitude 7420 JW6MH | |
iperf3 receive AX12 | |
Dell Latitude 7420 JW6MH | |
iperf3 transmit AXE11000 | |
Samsung Galaxy Book3 Pro 14 | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
iperf3 receive AXE11000 | |
HP ProBook 440 G9-5Y3Z3EA | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
iperf3 transmit AXE11000 6GHz | |
Samsung Galaxy Book3 Pro 14 | |
HP ProBook 440 G9-5Y3Z3EA | |
Dell Latitude 7440 | |
iperf3 receive AXE11000 6GHz | |
LG Gram 14Z90Q | |
HP ProBook 440 G9-5Y3Z3EA | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 |
摄像头 - 可选500万像素
去年的Latitude 7430仅有100万像素和200万像素摄像头可供选择,而Latitude 7440标配200万像素摄像头,并新增了升级至500万像素的选项。图像清晰度明显提高,但略微曝光过度。许多 惠普精英笔记本电脑也提供500万像素网络摄像头。
隐私快门是标准配置,而红外则是可选配置。
维护
底部面板只需一把十字螺丝刀即可拆卸。在焊接内存模块时,用户可以直接访问可拆卸的M.2 WAN和M.2 SSD模块。
配件和保修
包装盒内除了AC适配器和文件外没有其他附件。标配三年保修和现场服务。
输入设备 - 比以前更宽的点击板
触摸板
点击板比老款Latitude 7420(13.4 x 7.3厘米)的点击板更宽,无论光标速度如何,滑动都很顺畅。与大多数其他笔记本电脑(包括 XPS 13 系列或华硕 Zenbook 系列)上的点击板相比,点击时的反馈更坚硬,行程更深。 华硕Zenbook系列.它肯定比XPS 13系列或华硕Zenbook系列上的可怕的点击板更容易使用。 Latitude 9440.
显示屏 - 1200p和1600p触摸屏选项
友达光电B140QAX面板搭载在Latitude 7440上,是我们数据库中出现的第一款产品。它具有老款Latitude 7420上奇美CHF07 140HCG 1080p面板的所有优点,如高对比度和全sRGB覆盖,但原生分辨率更高达1600p。黑白和灰阶响应时间仍然相对较慢,但不会对大多数办公类型的工作负载产生负面影响。
戴尔提供更低端、更暗的1200p面板选项,其亮度只有我们1600p配置的一半。令人讨厌的是,戴尔并未对这些面板的色彩覆盖范围进行宣传,因此我们怀疑这些廉价选件的色彩远低于sRGB标准。
|
Brightness Distribution: 88 %
Center on Battery: 517.3 cd/m²
Contrast: 1521:1 (Black: 0.34 cd/m²)
ΔE Color 3.3 | 0.5-29.43 Ø4.92, calibrated: 1.02
ΔE Greyscale 5.6 | 0.5-98 Ø5.2
76.2% AdobeRGB 1998 (Argyll 2.2.0 3D)
99.9% sRGB (Argyll 2.2.0 3D)
75.4% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.37
Dell Latitude 7440 AU Optronics B140QAX, IPS, 2560x1600, 14" | Samsung Galaxy Book3 Pro 14 Samsung ATNA40CU02-0, AMOLED, 2880x1800, 14" | Lenovo ThinkPad E14 G4 21EB0041GE NV140FHM-N4V, IPS-LED, 1920x1080, 14" | HP ProBook 440 G9-5Y3Z3EA AUO559C, , 1920x1080, 14" | Dell Latitude 7420 JW6MH Chi Mei CMN1416 CHF07 140HCG, IPS, 1920x1080, 14" | LG Gram 14Z90Q LG LP140WU1-SPF1, IPS, 1920x1200, 14" | |
---|---|---|---|---|---|---|
Display | 19% | -44% | -48% | -6% | 15% | |
Display P3 Coverage | 75.4 | 99.7 32% | 40.6 -46% | 37 -51% | 68 -10% | 98.4 31% |
sRGB Coverage | 99.9 | 100 0% | 59.4 -41% | 55.5 -44% | 99 -1% | 99.9 0% |
AdobeRGB 1998 Coverage | 76.2 | 95.7 26% | 41.9 -45% | 38.2 -50% | 70 -8% | 85.9 13% |
Response Times | 100% | 44% | 38% | 9% | 18% | |
Response Time Grey 50% / Grey 80% * | 56 ? | 0.5 ? 99% | 26.1 ? 53% | 42 ? 25% | 55 ? 2% | 47.5 ? 15% |
Response Time Black / White * | 30.8 ? | 0.1 ? 100% | 20.3 ? 34% | 15 ? 51% | 26 ? 16% | 24.5 ? 20% |
PWM Frequency | 240 ? | |||||
Screen | 286% | -59% | -62% | 21% | -4% | |
Brightness middle | 517.3 | 409 -21% | 352 -32% | 255 -51% | 408 -21% | 341 -34% |
Brightness | 488 | 410 -16% | 330 -32% | 233 -52% | 378 -23% | 305 -37% |
Brightness Distribution | 88 | 99 13% | 89 1% | 86 -2% | 86 -2% | 87 -1% |
Black Level * | 0.34 | 0.01 97% | 0.34 -0% | 0.22 35% | 0.26 24% | |
Contrast | 1521 | 40900 2589% | 1035 -32% | 1855 22% | 1312 -14% | |
Colorchecker dE 2000 * | 3.3 | 2.36 28% | 4.9 -48% | 8.41 -155% | 1.54 53% | 3.11 6% |
Colorchecker dE 2000 max. * | 7.81 | 4.07 48% | 16.8 -115% | 13.51 -73% | 2.72 65% | 8.29 -6% |
Colorchecker dE 2000 calibrated * | 1.02 | 3.16 -210% | 4.6 -351% | 1.08 -6% | 0.83 19% | |
Greyscale dE 2000 * | 5.6 | 3.06 45% | 1.4 75% | 7.6 -36% | 1.95 65% | 5.3 5% |
Gamma | 2.37 93% | 2.49 88% | 2.12 104% | 3.12 71% | 2.33 94% | 2.037 108% |
CCT | 6804 96% | 6882 94% | 6665 98% | 6233 104% | 6806 96% | 7571 86% |
Total Average (Program / Settings) | 135% /
202% | -20% /
-41% | -24% /
-40% | 8% /
13% | 10% /
3% |
* ... smaller is better
显示屏没有经过预校准。平均灰度和色彩deltaE值分别为5.6和3.3,在使用X-Rite色度计校准后,我们可以将其分别降至2.2和1.02。用户可以应用我们上面的校准ICM配置文件,以获得更多的全sRGB显示效果。
Display Response Times
↔ Response Time Black to White | ||
---|---|---|
30.8 ms ... rise ↗ and fall ↘ combined | ↗ 14 ms rise | |
↘ 16.8 ms fall | ||
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 81 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21 ms). | ||
↔ Response Time 50% Grey to 80% Grey | ||
56 ms ... rise ↗ and fall ↘ combined | ↗ 26.1 ms rise | |
↘ 29.9 ms fall | ||
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 92 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.9 ms). |
Screen Flickering / PWM (Pulse-Width Modulation)
Screen flickering / PWM not detected | |||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8743 (minimum: 5 - maximum: 343500) Hz was measured. |
在阴凉处的室外能见度不错,比ThinkPad E14 G4或 ProBook 440 G9 的显示效果要好,因为它们的显示效果明显较暗。不过,如果室外能见度很重要,那么我们建议您看看 惠普EliteBook 865及其1000尼特的超亮显示屏。
性能 - 配备vPro的英特尔第13代处理器
测试条件
在运行以下基准测试之前,我们通过戴尔优化大师将设备设置为超性能模式。该软件有一个非常方便的功能,可将戴尔电源配置文件与普通Windows电源配置文件同步,因此您只需更改一次设置,而无需更改两次。大多数其他笔记本电脑都没有这项功能。
建议用户熟悉Optimizer,因为它是切换戴尔特定功能(如存在检测、充电行为等)的中心。
处理器
CPU性能卓越,甚至比非vPro处理器快5%至10%。 酷睿i5-1335U的三星Galaxy Book3 15.从酷睿 i5-1145G7Latitude 跳转到我们的 酷睿i5-1345U多线程性能将提升2倍以上。戴尔机型不提供Core-P或AMD Ryzen Zen选项,而这些选项可进一步提升多线程性能。
由于系统的Turbo Boost潜力有限,在循环运行CineBench R15 xT时,性能会随时间下降约17%。在测试中期,我们记录到40%的急剧下降,但如下图所示,很快就恢复了。
升级到价格更高的 酷睿i7-1365U根据我们使用联想ThinkPad X1 G的经验,升级到价格更高的酷睿i7-1365U预计将比酷睿i5配置的性能仅提升5%至10%。联想ThinkPad X1 Carbon G11.
Cinebench R15 Multi Loop
Cinebench R20: CPU (Multi Core) | CPU (Single Core)
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
Cinebench R20: CPU (Multi Core) | CPU (Single Core)
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
* ... smaller is better
* ... smaller is better
AIDA64: FP32 Ray-Trace | FPU Julia | CPU SHA3 | CPU Queen | FPU SinJulia | FPU Mandel | CPU AES | CPU ZLib | FP64 Ray-Trace | CPU PhotoWorxx
Performance Rating | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / FP32 Ray-Trace | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (5500 - 8830, n=3) | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / FPU Julia | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U (28617 - 43149, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
Dell Latitude 7420 JW6MH | |
LG Gram 14Z90Q |
AIDA64 / CPU SHA3 | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Dell Latitude 7420 JW6MH | |
Average Intel Core i5-1345U (1459 - 2265, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
Samsung Galaxy Book3 Pro 14 | |
LG Gram 14Z90Q |
AIDA64 / CPU Queen | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
LG Gram 14Z90Q | |
Samsung Galaxy Book3 Pro 14 | |
HP ProBook 440 G9-5Y3Z3EA | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (61382 - 62953, n=3) | |
Dell Latitude 7420 JW6MH |
AIDA64 / FPU SinJulia | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
Average Intel Core i5-1345U (4077 - 5206, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / FPU Mandel | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (13914 - 21556, n=3) | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / CPU AES | |
Dell Latitude 7420 JW6MH | |
Samsung Galaxy Book3 Pro 14 | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (29897 - 41994, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / CPU ZLib | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (434 - 640, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
LG Gram 14Z90Q |
AIDA64 / FP64 Ray-Trace | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (2812 - 4640, n=3) | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
AIDA64 / CPU PhotoWorxx | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Dell Latitude 7420 JW6MH | |
Average Intel Core i5-1345U (22065 - 39231, n=3) | |
LG Gram 14Z90Q | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE |
系统性能
PCMark 结果始终高于旧版Latitude 7420,但仍略逊于配备更快 Core i7-P CPU 的笔记本电脑,如 Galaxy Book3 Pro 14.
CrossMark: Overall | Productivity | Creativity | Responsiveness
PCMark 10 / Score | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (5276 - 5554, n=3) | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q | |
Dell Latitude 7420 JW6MH |
PCMark 10 / Essentials | |
Dell Latitude 7440 | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (10352 - 10758, n=3) | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q |
PCMark 10 / Productivity | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
HP ProBook 440 G9-5Y3Z3EA | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (6832 - 7189, n=3) | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
LG Gram 14Z90Q |
PCMark 10 / Digital Content Creation | |
Samsung Galaxy Book3 Pro 14 | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
HP ProBook 440 G9-5Y3Z3EA | |
LG Gram 14Z90Q | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (5530 - 6012, n=3) | |
Dell Latitude 7420 JW6MH |
CrossMark / Overall | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (1416 - 1531, n=2) | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7420 JW6MH |
CrossMark / Productivity | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (1420 - 1504, n=2) | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7420 JW6MH |
CrossMark / Creativity | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (1482 - 1635, n=2) | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7420 JW6MH |
CrossMark / Responsiveness | |
Samsung Galaxy Book3 Pro 14 | |
Average Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs (1226 - 1325, n=2) | |
Dell Latitude 7420 JW6MH | |
HP ProBook 440 G9-5Y3Z3EA | |
Lenovo ThinkPad E14 G4 21EB0041GE |
PCMark 10 Score | 5554 points | |
Help |
AIDA64 / Memory Copy | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Dell Latitude 7420 JW6MH | |
LG Gram 14Z90Q | |
Average Intel Core i5-1345U (38526 - 57716, n=3) | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
HP ProBook 440 G9-5Y3Z3EA |
AIDA64 / Memory Read | |
LG Gram 14Z90Q | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7420 JW6MH | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (41894 - 50185, n=3) | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
HP ProBook 440 G9-5Y3Z3EA |
AIDA64 / Memory Write | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Average Intel Core i5-1345U (44821 - 72373, n=3) | |
LG Gram 14Z90Q | |
Dell Latitude 7420 JW6MH | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
HP ProBook 440 G9-5Y3Z3EA |
AIDA64 / Memory Latency | |
LG Gram 14Z90Q | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
Dell Latitude 7440 | |
Dell Latitude 7420 JW6MH | |
Average Intel Core i5-1345U (73.8 - 103.9, n=3) | |
Samsung Galaxy Book3 Pro 14 | |
HP ProBook 440 G9-5Y3Z3EA |
* ... smaller is better
DPC延迟
LatencyMon显示,在打开我们主页的多个浏览器标签页时存在轻微的DPC问题。60FPS的4K视频回放也非常完美,没有掉帧记录。
DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
HP ProBook 440 G9-5Y3Z3EA | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
LG Gram 14Z90Q | |
Dell Latitude 7420 JW6MH |
* ... smaller is better
存储设备 - 仅单个M.2 2242固态硬盘
我们的测试机配备了中端 三星PM9B1 MZ9L4512HBLUPCIe4 x4 NVMe SSD,最大读写速率分别为 3500 MB/s 和 2500 MB/s。正如我们下面的DiskSpd循环结果所示,该硬盘能够在长时间的压力下保持这些速率。固态硬盘顶部标配了散热垫和磁头扩张器,以帮助散热。
没有用于扩展的辅助固态硬盘插槽。
Drive Performance Rating - Percent | |
LG Gram 14Z90Q | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Dell Latitude 7420 JW6MH | |
Lenovo ThinkPad E14 G4 21EB0041GE | |
HP ProBook 440 G9-5Y3Z3EA |
* ... smaller is better
Disk Throttling: DiskSpd Read Loop, Queue Depth 8
GPU性能 - Iris Xe突飞猛进
我们的 Iris Xe 80 EUs的性能比我们数据库中配备相同集成 GPU 的普通笔记本电脑快 15% 到 20%。这一优势可归功于更新、更快的第13代酷睿i5-1345U处理器,而我们数据库中的绝大多数Iris Xe笔记本电脑运行的是第11代和第12代处理器。升级至酷睿i7-1355U或i7-1365U配置,配备 Iris Xe 96 EU有望将GPU性能再提升10%至20%。
从下面的3DMark 11结果可以看出,平衡模式下的系统性能并不比性能模式下慢很多。CPU性能仅会下降几个百分点。
3DMark 11 子测试 | 平衡模式 | 性能模式 |
图形得分 | 5506 (-0%) | 5485 |
物理得分 | 14234 (-4%) | 14788 |
综合成绩 | 5588 (-0%) | 5538 |
3DMark 11 Performance | 6062 points | |
3DMark Fire Strike Score | 4152 points | |
3DMark Time Spy Score | 1501 points | |
Help |
Tiny Tina's Wonderlands | |
1920x1080 Low Preset (DX12) | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (19.8 - 30.3, n=9) | |
1920x1080 Medium Preset (DX12) | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (15.3 - 23.9, n=8) | |
1920x1080 High Preset (DX12) | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (10.2 - 14.7, n=8) | |
1920x1080 Badass Preset (DX12) | |
Average Intel Iris Xe Graphics G7 80EUs (8.1 - 11.4, n=6) | |
Dell Latitude 7440 |
F1 22 | |
1280x720 Ultra Low Preset AA:T AF:16x | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (11.3 - 81, n=10) | |
1920x1080 Low Preset AA:T AF:16x | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (11 - 60.5, n=14) | |
LG Gram 14Z90Q | |
1920x1080 Medium Preset AA:T AF:16x | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (20 - 42.5, n=13) | |
Samsung Galaxy Book3 Pro 14 | |
LG Gram 14Z90Q | |
1920x1080 High Preset AA:T AF:16x | |
Samsung Galaxy Book3 Pro 14 | |
Dell Latitude 7440 | |
Average Intel Iris Xe Graphics G7 80EUs (17 - 32.1, n=13) | |
LG Gram 14Z90Q | |
1920x1080 Ultra High Preset AA:T AF:16x | |
Average Intel Iris Xe Graphics G7 80EUs (16.4 - 23.9, n=10) | |
Dell Latitude 7440 | |
Samsung Galaxy Book3 Pro 14 |
Witcher 3 FPS Chart
low | med. | high | ultra | |
---|---|---|---|---|
GTA V (2015) | 101.5 | 93.1 | 20.7 | 8.81 |
The Witcher 3 (2015) | 87.1 | 54 | 29.1 | 13.4 |
Dota 2 Reborn (2015) | 108.1 | 85 | 61.8 | 56.3 |
Final Fantasy XV Benchmark (2018) | 37.9 | 21 | 16.8 | |
X-Plane 11.11 (2018) | 33.8 | 28.3 | 21.3 | |
Strange Brigade (2018) | 78.5 | 33.8 | 26.9 | 21.9 |
Cyberpunk 2077 1.6 (2022) | 17.8 | 14.7 | 11.3 | 9 |
Tiny Tina's Wonderlands (2022) | 26.2 | 20.3 | 12.5 | 9.7 |
F1 22 (2022) | 40.6 | 36.7 | 25.6 | 19.4 |
排放 - 在大多数负载下保持安静
系统噪声
即使设置为性能模式,风扇噪音也比预期的要小。在浏览网页或流媒体视频时,系统往往在24至26 dB(A)的范围内徘徊,这在大多数办公室或教室环境中基本上是听不到的。在Prime95等极端压力下,风扇噪音为38 dB(A),与ThinkPad E14 G4相似,但比ThinkPad E14 G4安静得多。Galaxy Book3 Pro 14或更旧的 Latitude 7420.
Noise Level
Idle |
| 22.8 / 22.8 / 22.8 dB(A) |
Load |
| 26.3 / 38.3 dB(A) |
| ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min: , med: , max: Earthworks M23R, Arta (15 cm distance) environment noise: 22.8 dB(A) |
Dell Latitude 7440 Iris Xe G7 80EUs, i5-1345U, Samsung MZ9L4512HBLU-00BMV | Samsung Galaxy Book3 Pro 14 Iris Xe G7 96EUs, i7-1360P, WD PC SN740 512GB SDDPMQD-512G-1101 | Lenovo ThinkPad E14 G4 21EB0041GE Vega 8, R7 5825U, Micron 2450 512GB MTFDKCD512TFK | HP ProBook 440 G9-5Y3Z3EA Iris Xe G7 96EUs, i7-1255U, Samsung PM991 MZVLQ512HBLU | Dell Latitude 7420 JW6MH Iris Xe G7 80EUs, i5-1145G7, SK Hynix BC711 HFM512GD3HX015N | LG Gram 14Z90Q Iris Xe G7 80EUs, i5-1240P, Samsung PM9A1 MZVL2512HCJQ | |
---|---|---|---|---|---|---|
Noise | -27% | -4% | -14% | -22% | -16% | |
off / environment * | 22.8 | 25.2 -11% | 22.9 -0% | 27 -18% | 25.3 -11% | 25 -10% |
Idle Minimum * | 22.8 | 25.2 -11% | 22.9 -0% | 27 -18% | 25.3 -11% | 26 -14% |
Idle Average * | 22.8 | 25.2 -11% | 22.9 -0% | 27 -18% | 25.3 -11% | 27 -18% |
Idle Maximum * | 22.8 | 32 -40% | 22.9 -0% | 27 -18% | 25.3 -11% | 28 -23% |
Load Average * | 26.3 | 45.25 -72% | 30.3 -15% | 31.5 -20% | 44.9 -71% | 35 -33% |
Witcher 3 ultra * | 30 | 34.5 -15% | 36 -20% | |||
Load Maximum * | 38.3 | 45.3 -18% | 37.5 2% | 34.9 9% | 44.9 -17% | 36 6% |
* ... smaller is better
温度
由于CPU的位置,笔记本电脑的左半部比右半部温度高。顶部和底部的热点温度可高达40摄氏度,但仍比Book3 Pro 14的温度低得多。 Galaxy Book3 Pro 14戴尔笔记本的表面温度可达50摄氏度以上。
(+) The maximum temperature on the upper side is 39 °C / 102 F, compared to the average of 34.3 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(±) The bottom heats up to a maximum of 40.6 °C / 105 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.2 °C / 79 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 26.6 °C / 79.9 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (+1.1 °C / 2 F).
Dell Latitude 7440 Intel Core i5-1345U, Intel Iris Xe Graphics G7 80EUs | Samsung Galaxy Book3 Pro 14 Intel Core i7-1360P, Intel Iris Xe Graphics G7 96EUs | Lenovo ThinkPad E14 G4 21EB0041GE AMD Ryzen 7 5825U, AMD Radeon RX Vega 8 (Ryzen 4000/5000) | HP ProBook 440 G9-5Y3Z3EA Intel Core i7-1255U, Intel Iris Xe Graphics G7 96EUs | Dell Latitude 7420 JW6MH Intel Core i5-1145G7, Intel Iris Xe Graphics G7 80EUs | LG Gram 14Z90Q Intel Core i5-1240P, Intel Iris Xe Graphics G7 80EUs | |
---|---|---|---|---|---|---|
Heat | -15% | -3% | 4% | 4% | -4% | |
Maximum Upper Side * | 39 | 43.9 -13% | 38.8 1% | 38.9 -0% | 37.1 5% | 43 -10% |
Maximum Bottom * | 40.6 | 50.7 -25% | 44.5 -10% | 37.4 8% | 38.7 5% | 45 -11% |
Idle Upper Side * | 28 | 30.8 -10% | 28.1 -0% | 26.7 5% | 27.3 2% | 27 4% |
Idle Bottom * | 28.8 | 31.6 -10% | 29 -1% | 27.8 3% | 28.1 2% | 28 3% |
* ... smaller is better
压力测试
当启动Prime95压力时,CPU时钟频率、温度和电路板功耗将分别飙升至3.7 GHz、99 C和45 W,持续约10秒钟。然后,CPU会降至1.7 GHz,最终稳定在2.6 GHz、78 C和25 W,如下图所示。在最终恢复之前时钟频率的急剧下降反映了我们上面的CineBench R15 Loop测试结果。
运行时的核心温度 Witcher 3的温度稳定在相对较低的67摄氏度,而性能更强的微星Summit E14 Flip Evolution则为85摄氏度。微星Summit E14 Flip Evo.较低的核心温度使皮肤温度更低。
使用电池供电会影响性能。使用电池进行3DMark 11测试时,物理和图形分数分别为10072分和5353分,而使用电源时分别为14788分和5485分。
CPU 时钟 (GHz) | GPU 时钟 (MHz) | CPU 平均温度 (°C) | |
系统闲置 | -- | -- | 44 |
Prime95 压力 | 2.6 | -- | 78 |
Prime95 + FurMark Stress | 1.4 | 748 - 850 | 66 |
Witcher 3 应力 | ~2.0 | 1147 | 67 |
扬声器
扬声器从两个增加到四个,现在比上一代机型和大多数其他笔记本电脑的音量都要大,最大音量往往在80 dB(A)的中低音量范围内徘徊。从宽广的粉红噪声曲线可以看出,音频质量似乎也很均衡。
Dell Latitude 7440 audio analysis
(+) | speakers can play relatively loud (89 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 15.3% lower than median
(±) | linearity of bass is average (10.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.2% away from median
(+) | mids are linear (4.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.2% higher than median
(+) | highs are linear (5.1% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (11.2% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 98% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 6% of all tested devices were better, 2% similar, 93% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Apple MacBook Pro 16 2021 M1 Pro audio analysis
(+) | speakers can play relatively loud (84.7 dB)
Bass 100 - 315 Hz
(+) | good bass - only 3.8% away from median
(+) | bass is linear (5.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.3% away from median
(+) | mids are linear (2.1% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.9% away from median
(+) | highs are linear (2.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (4.6% difference to median)
Compared to same class
» 0% of all tested devices in this class were better, 0% similar, 100% worse
» The best had a delta of 5%, average was 18%, worst was 45%
Compared to all devices tested
» 0% of all tested devices were better, 0% similar, 100% worse
» The best had a delta of 4%, average was 25%, worst was 134%
能源管理
功耗 - 高效CPU
在最低亮度设置下,台式机的空转功耗约为4.5瓦,而如果亮度设置为最大,则为6.5瓦。功率需求略低于竞争对手,如惠普ProBook 440 G9或采用AMD技术的联想ThinkPad E14 G4等竞争对手略低,这也是下一节介绍的电池续航时间较长的原因。
运行游戏等较高负载时的功耗在46瓦至53瓦之间,比上述惠普和联想系统高出几瓦。当CPU的利用率达到100%时,我们可以测量到小尺寸(约6.6 x 5.5 x 2.2厘米)60 W USB-C交流适配器的临时最大功耗为63 W。Latitude 7440配备了与XPS 13 9320系列相同的AC适配器。 XPS 13 9320系列.
Off / Standby | 0.36 / 0.74 Watt |
Idle | 4.5 / 6.5 / 7.3 Watt |
Load |
52.5 / 63 Watt |
Key:
min: ,
med: ,
max: Metrahit Energy |
Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs, Samsung MZ9L4512HBLU-00BMV, IPS, 2560x1600, 14" | Samsung Galaxy Book3 Pro 14 i7-1360P, Iris Xe G7 96EUs, WD PC SN740 512GB SDDPMQD-512G-1101, AMOLED, 2880x1800, 14" | Lenovo ThinkPad E14 G4 21EB0041GE R7 5825U, Vega 8, Micron 2450 512GB MTFDKCD512TFK, IPS-LED, 1920x1080, 14" | HP ProBook 440 G9-5Y3Z3EA i7-1255U, Iris Xe G7 96EUs, Samsung PM991 MZVLQ512HBLU, , 1920x1080, 14" | Dell Latitude 7420 JW6MH i5-1145G7, Iris Xe G7 80EUs, SK Hynix BC711 HFM512GD3HX015N, IPS, 1920x1080, 14" | LG Gram 14Z90Q i5-1240P, Iris Xe G7 80EUs, Samsung PM9A1 MZVL2512HCJQ, IPS, 1920x1200, 14" | |
---|---|---|---|---|---|---|
Power Consumption | -10% | 4% | -3% | 17% | 4% | |
Idle Minimum * | 4.5 | 4.2 7% | 4.1 9% | 5.1 -13% | 2.7 40% | 3 33% |
Idle Average * | 6.5 | 4.7 28% | 7.1 -9% | 7.4 -14% | 6 8% | 6 8% |
Idle Maximum * | 7.3 | 11.4 -56% | 8.1 -11% | 8.4 -15% | 7.6 -4% | 12 -64% |
Load Average * | 52.5 | 61.5 -17% | 41.6 21% | 42.6 19% | 37 30% | 40 24% |
Witcher 3 ultra * | 46.2 | 55.1 -19% | 43.7 5% | 42.3 8% | 33.2 28% | 36.5 21% |
Load Maximum * | 63 | 64 -2% | 58.4 7% | 64 -2% | 65 -3% | 63 -0% |
* ... smaller is better
Power Consumption Witcher 3 / Stresstest
Power Consumption external Monitor
电池寿命
电池容量从旧款Latitude 7420 的 63 Wh 下降到最新款的 57 Wh。无线局域网的运行时间因此缩短了大约一个小时,但对于大多数用户来说,13个多小时还是绰绰有余的。
使用随附的交流适配器,从空电充至满电大约需要2小时。几乎任何USB-C充电器都可用于为系统充电。
Dell Latitude 7440 i5-1345U, Iris Xe G7 80EUs, 57 Wh | Samsung Galaxy Book3 Pro 14 i7-1360P, Iris Xe G7 96EUs, 63 Wh | Lenovo ThinkPad E14 G4 21EB0041GE R7 5825U, Vega 8, 57 Wh | HP ProBook 440 G9-5Y3Z3EA i7-1255U, Iris Xe G7 96EUs, 42 Wh | Dell Latitude 7420 JW6MH i5-1145G7, Iris Xe G7 80EUs, 63 Wh | LG Gram 14Z90Q i5-1240P, Iris Xe G7 80EUs, 72 Wh | |
---|---|---|---|---|---|---|
Battery Runtime | -26% | -37% | -56% | 1% | 5% | |
Reader / Idle | 1427 | 1257 -12% | 1411 -1% | 1736 22% | ||
WiFi v1.3 | 781 | 528 -32% | 562 -28% | 344 -56% | 848 9% | 712 -9% |
Load | 164 | 109 -34% | 90 -45% | 155 -5% | 169 3% | |
H.264 | 712 | 676 |
Pros
Cons
结论--安全第一,回报丰厚
鉴于 Latitude 94407440在设计上冒了风险,而Latitude 7440则采用了核心商务用户能够欣赏的久经考验的物理功能和选项。不喜欢Latitude 9440的 "零格子 "键盘、海绵状点击板或仅USB-C设计的用户会发现Latitude 7440更易于使用,任何可靠的笔记本电脑都应该如此。它甚至配备了500万像素网络摄像头,而价格更高的Latitude 9440仅有200万像素。
Latitude 7440看起来可能没有Latitude 9440那么花哨或时尚,但它绝对更容易使用,没有多余的功能。
该机型其他值得注意的亮点包括安静的风扇噪音、良好的电池续航能力以及亚笔记本设计的大音量扬声器。
机箱刚性是今后重新设计时可以改进的地方。较重的铝制机身可能会有更好的表现,但较轻的镁合金机身则更容易扭曲和吱吱作响。 惠普蜻蜓专业版或 联想ThinkPad Titanium.
价格和供货情况
戴尔现在出货的是Latitude 7440 Clamshell,Core i5 1200p配置的起价为1700美元,Core i7 1600p配置的起价超过2000美元。
Dell Latitude 7440
- 07/14/2023 v7 (old)
Allen Ngo
Transparency
The selection of devices to be reviewed is made by our editorial team. The test sample was provided to the author as a loan by the manufacturer or retailer for the purpose of this review. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review. We never accept compensation or payment in return for our reviews. As an independent media company, Notebookcheck is not subjected to the authority of manufacturers, retailers or publishers.
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Every year, Notebookcheck independently reviews hundreds of laptops and smartphones using standardized procedures to ensure that all results are comparable. We have continuously developed our test methods for around 20 years and set industry standards in the process. In our test labs, high-quality measuring equipment is utilized by experienced technicians and editors. These tests involve a multi-stage validation process. Our complex rating system is based on hundreds of well-founded measurements and benchmarks, which maintains objectivity. Further information on our test methods can be found here.