Surface Pro 3 I5 Vs I7

Surface Laptop

The Surface Laptop is Microsoft's latest foray into PC hardware, and reviews across the lath have been overwhelmingly positive ... except for price considerations. If yous noticed ane consistency in those reviews it was the similar processor – Core i5-7200U with Intel HD620 graphics – that was tested.

I was curious, however, about how the Core i7-7660U version stacked up regarding performance, bombardment life, and fan noise. Here is what I plant.

Surface Laptop Core i7 performance comparing

The Surface Laptop with Core i7 starts at $one,599, and information technology features 8GB of RAM and 256GB of storage, simply like the specs in our Core i5 review unit. There is likewise an i7 version with 16GB of RAM and 512GB of storage for $two,199 that should be bachelor on June 30.

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The ii main differences between the Core i5 and Cadre i7 are clock speed for turbo frequencies and the more powerful graphics with the Intel Iris Plus 640, both of which make the Cadre i7 well suited for power users. The cost difference is $300 betwixt like models for the actress RAM and storage. Part of that toll difference is the Cadre i7, which has a suggested price of $415 versus the $281 for the Core i5.

Surface Laptop Core i5 vs. Core i7

Category	Core i5-7200U	Core i7-7660U
Number of cores	Two	Two
Number of threads	Four	Four
TDP	fifteen W	xv W
Base frequency	ii.50 GHz	2.50 GHz
Max turbo frequency	three.10 GHz	4.00 GHz
Cache	three MB SmartCache	iv MB SmartCache
Graphics	Intel Hard disk drive 620	Intel Iris Plus 640

When it comes to graphics, the Iris Plus 640 has double the execution units – 48 – and features 64MB of eDRAM. The eDRAM is a big deal for operation and is completely lacking with the Intel Hard disk 620. That eDRAM also is probable what drives upwards the price of the chip because that memory is not inexpensive. Likewise, the Graphics Max Dynamic Frequency jumps from 1.00 GHz to one.10 GHz with the Iris Plus 640. All of that finer doubles the floating-point operations per second (FLOPS) from 384 to 730 in favor of Iris Plus. (Floating bespeak operations are used for calculating scientific or real-time processing applications that crunch extremely long numbers).

CPU

Taking a closer look at Geekbench iv.0, which is more CPU-heavy than graphics-heavy, you can encounter a significant jump in performance betwixt the Surface Laptop Cadre i7 over the Cadre i5 variant. Merely as interesting is how the Surface Laptop's Core i7 slightly outperforms the Surface Pro (2017) with a similar configuration. That difference is likely due to more aggressive power throttling (more on that below).

Geekbench 4.0 benchmarks (higher is better)

Device	CPU	Single core	Multi core
Surface Laptop i7	i7-7660U	4,714	9,535
Surface Pro 2017	i7-7660U	4,513	9,346
Surface Book	i7-6600U	3,977	vii,486
Surface Laptop i5	i5-7200U	three,725	seven,523
Surface Pro 4	i5-6300U	3,319	half-dozen,950

GPU

While the Core i7 is faster than the Core i5, you see a bigger gap on the OpenCL test that looks at graphics performance.

Geekbench 4.0 OpenCL (college is better)

Device	GPU	Compute score
Surface Laptop i7	Iris 640	31,010
Surface Volume	GTX 965M	64,108
Surface Pro 2017	Iris 640	thirty,678
Surface Laptop i5	HD620	nineteen,256
Surface Book	HD520	xviii,197
Surface Pro four	HD520	17,395

The Intel Iris Plus 640 (31,010) makes pregnant gains on the HD620 (19,256). While Iris Plus is non equally powerful as a discrete GPU, it rivals the NVIDIA GT-940M (28,868), even beating it slightly. Nonetheless, for gaming, the discrete GPU will perform better overall due to greater memory and bandwidth – see, for instance, how the Surface Volume with Functioning Base (GTX 965M) doubles the Iris Plus for OpenCL. For short, intensive tasks the Iris Plus is excellent, specially for productivity.

CPU & GPU

PCMark (Home Conventional 3.0)

Device	Score	Comparison
Surface Laptop i7	three,156	Ameliorate than 62 percent of all results
Surface Pro 2017 i7	3,055	Better than 57 percent of all results
Surface Laptop i5	ii,494	Better than forty percent of all results

Again, for PCMark, the Surface Laptop with Cadre i7 beats all other mobile Surfaces including the similarly configured Surface Pro.

SSD

For those hoping the Cadre i7 version of the Surface Laptop would apply a more powerful storage selection, you will be disappointed.

CrystalDiskMark (higher is improve)

Device	Read	Write
Surface Laptop i7	486 MB/southward	244 MB/s
Surface Pro 2017	1,284 MB/s	963 MB/s
Surface Book	1,018 MB/due south	967 MB/s
Surface Laptop i5	423 MB/s	237 MB/s

Microsoft is using the same Toshiba (THNSN0256GTYA) solid-state drive (SSD) as the Core i5 variant at 256GB. It is not yet known if the 512GB Surface Laptop has a different drive, but since SSDs usually scale up in performance based on size, even if they're the same type, it should be faster than at 256GB.

Real-world usage for running apps, games, and the OS feels fast with the Surface Laptop's SSD, so it'southward non a problem unless you do big file transfers. Microsoft faced new constraints with the Surface Laptop because storage, for the first time, is direct integrated into the motherboard instead of a separate module. That choice was fabricated to salvage space, ability, and add a larger bombardment. The tradeoff seems worth it.

Overall, there are no caveats or surprises here. The Surface Laptop with Core i7 outperforms the Core i5 version significantly for both CPU and GPU. The Laptop's higher scores compared to Surface Pro likely have to practice with more agressive power limit throttling in the Pro due to its thinner and more compact chassis. Let's now turn to throttling to see what happens there.

Surface Laptop Core i7 stress exam and throttling

CPU thermal management is always a challenge, so the question of whether Microsoft is purposefully limiting the Core i7 on the Surface Laptop is a legitimate one.

To detect an reply, I ran Intel XTU's stress test for xxx minutes on both the Cadre i5 and Core i7 Surface Laptops. Both power sliders were fix to "All-time Performance" with Air conditioning power to ensure the processors were maxing out.

Microsoft is certainly non thermal throttling the Cadre i7 or Core i5, but there is some occasional power limit throttling. Power limit throttling (a.k.a. PL1) tin can be thought of as a skin temperature test that ensures the Surface does not get too hot to touch. It's dependent on the manufacturer – Microsoft – setting an upper limit on how hot the Surface (versus the processor) should be allowed to get before the system reduces the power depict, reducing overall CPU speed.

Intel XTU 30-minute CPU stress test shows no thermal throttling, but occasional power throttling to go along the chassis from getting too hot.

Thermal throttling, even so, is a reaction to farthermost CPU temperatures. Once the CPU hits an upper limit, it reduces ability to lower the processor speed and drib temperatures. Likewise, processor thermal throttling can have severe oscillations in operation, whereas power limit throttling is more than consistent.

It is important to note that virtually all laptops do this to some degree. PL1 is also the reason why some people utilise a USB fan to cool the back of the Surface Pro. The limit is entirely dependent on the room temperature and how hot the laptop gets. By cooling the outside of the Surface, you can stave off the effects of power-limit throttling.

The event is the Cadre i7 running at 100 percent CPU usage in a room about 78 degrees F (26 degrees C) maintains betwixt 3.2 GHz and 3.vi GHz, which is quite skilful. The Cadre i7 is rated for 15W TDP (but tin turbo higher), and it fluctuated between 11W and 16W during the entire 30-minute test.

Had I done the same test in a cooler, air-conditioned room, the results would have been fifty-fifty improve due to the Surface Laptop chassis's ability to dissipate more heat efficiently.

Heat and fan noise with the Surface Laptop Core i7

It should non be shocking to acquire that the Surface Laptop runs hotter when configured with a Core i7 CPU versus the Core i5 model.

Surface Laptop peak temperatures

Category	Core i5-7200U	Core i7-7660U
Lesser of laptop	104° F / 40° C	113°F / 45° C
Keyboard deck	102°F / 39° C	108° F / 42° C
Exhaust vent	113° F / 45° C	120° F / 49° C

The Cadre i7 Surface Laptop gets significantly warmer on the aluminum bottom, keyboard deck and of course at the exhaust vent. While the temperatures were never extreme, the Core i7 later 30 minutes of 100 per centum CPU usage – an unlikely scenario – pushes out more heat compared to the Core i5.

While you may not desire to use the Cadre i7 Surface Laptop while wearing shorts during a 30-minute stress examination, at least under regular usage there is no significant difference betwixt the two. Both laptops easily stay well below 100 degrees F (38 degrees C) and are comfy to utilize.

The Core i7 Surface Laptop does go warm nether 100% CPU load, only never too hot.

For fan noise, the Core i7 is louder. While not every bit irritating every bit the Surface Pro 3 or Surface Pro 4'due south infamous "hiss," the fan was aural from 3 anxiety away during the xxx-minute stress test. The Core i5 version, all the same, is however ridiculously quiet ofttimes requiring you to put your caput nigh the exhaust only to hear information technology, fifty-fifty nether load.

In existent world usage, both laptops are inaudible when browsing the web, using Windows Shop apps, or doing productivity work. Fifty-fifty when under CPU load, like when playing a game or doing some light video editing, both laptops will exist some of the quietest on the market. Nonetheless, if you lot value silence, the Core i5 version is an excellent choice considering it nearly seems fanless.

Surface Laptop Core i7 battery life is great

Testing battery life on a PC is rather hard due to the extreme stepping technology that Intel uses, making it very task dependent. If running the processor at 100 percent you lot can run out of ability in simply a few hours. But that is not how most people use laptops.

I did not notice a radical difference in battery life with the Core i7 Surface Laptop compared to the Cadre i5 model. That result is probable considering the type of calculating I do – web browsing using Edge, writing in Microsoft Discussion, running Windows Store apps like Twitter, Adobe Photoshop Elements, Slack, and GroupMe – do not crusade the i7 to run on the 4.00 GHz ceiling for long durations.

For real-globe usage, the Cadre i7 lasted me effectually eight hours, sometimes more, at 40 percent screen brightness and connected to Wi-Fi. Like the Core i5 version I never felt I had to bear the Ac adapter – even if it's adorably small with this generation of hardware.

Microsoft claims fourteen.5 hours of life, merely that is a looped video examination with no network connectivity. Companies do this for one reason: it's a repeatable claim. Anyone tin re-run that test and become the aforementioned effect, whereas existent-earth usage varies widely by the user.

Going to the other farthermost is a run-down battery test like PCMark. That test, when set up to accelerated, uses the CPU and GPU to continuously run looping tasks like photograph editing, video conversation, web browsing, and more than, until the battery hits 20 percent. Here the results were surprising. With both displays set to 50 percent brightness and "recommended" for power usage, these are the results:

PCMark 8 Dwelling house Battery Accelerated

Category	Core i5-7200U	Core i7-7660U	Battery consumption
Fourth dimension	Five hours and i infinitesimal	5 hours and 15 minutes	81 percent

In a battery run-down, the Core i7 lasted slightly longer than the Core i5 model. The result may be because the Core i7 simply accomplishes its tasks faster, spending less time at peak turbo. The Core i5 and Core i7 too have similar base clock speeds. Go on in mind that the battery on both devices notwithstanding had nineteen percent left and could accept squeezed out some other hour or more, especially in bombardment saver mode.

The bottom line is the Core i7 Surface Laptop gets comparable battery life to the Core i5 model assuming you're not running information technology at 100 percent CPU for 100 percent of the time.

Conclusion: Surface Laptop with Core i7 is truly impressive

In testing the Surface Laptop with Core i7-7660U, there is good news all effectually. The processor performs significantly faster than the Core i5, which is simply sweetened by the excellent Iris Plus 640 for graphics.

Under extreme duress, the Core i7 held up well at an average of 3.5GHz, and while the external temperatures were noticeably warm, it was never scorching.

Fan noise is louder, but still well below some other current laptops in the same class. During regular usage, the i7'due south fan was quiet and just kicked in when CPU usage sustained at a high rate for more than than few minutes.

Full Surface Laptop review

Finally, for battery life, the Core i7 and Cadre i5 models are similar in real-world use, and in synthetic benchmarks the Core i7 can even outlive the Core i5, albeit past a small margin.

Whether the Surface Laptop with Core i7 is worth it is another contend. For most users, the Cadre i5 model is perfectly fine. It delivers cooler thermals and a quieter fan (despite how rarely it comes on) – and it does all of that at a significantly lower toll.

People who need a Core i7 processor know it – they're graphics pros, engineers, or just like to have the fastest model available. For those folks, the Core i7 is an excellent pick as I found no fatal flaws with it versus the Core i5 model save, for the lack of colour choice for the chassis. At that place is just Platinum, for now, with the Core i7 models. However, I am told Microsoft Stores will accept the 16GB version in all four colors before long.

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Daniel Rubino is the Executive Editor of Windows Central, head reviewer, podcast co-host, and analyst. He has been covering Microsoft hither since 2007, back when this site was called WMExperts (and later Windows Phone Primal). His interests include Windows, Microsoft Surface, laptops, adjacent-gen computing, and arguing with people on the internet.

Source: https://www.windowscentral.com/surface-laptop-i7-review

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