The Intel Core i3-7350K (60W) Review: Almost a Core i7-2600K
by Ian Cutress on February 3, 2017 8:00 AM ESTProfessional Performance: Windows
Agisoft Photoscan – 2D to 3D Image Manipulation: link
Agisoft Photoscan creates 3D models from 2D images, a process which is very computationally expensive. The algorithm is split into four distinct phases, and different phases of the model reconstruction require either fast memory, fast IPC, more cores, or even OpenCL compute devices to hand. Agisoft supplied us with a special version of the software to script the process, where we take 50 images of a stately home and convert it into a medium quality model. This benchmark typically takes around 15-20 minutes on a high-end PC on the CPU alone, with GPUs reducing the time.
Here we report the overall time to complete the test – sub-test results can be found in Bench.
Photoscan is a mix of single and multi-threaded segments, but overall the extra cores in the i5/i7 beat the Core i3, but not by much.
Cinebench R15
Cinebench is a benchmark based around Cinema 4D, and is fairly well known among enthusiasts for stressing the CPU for a provided workload. Results are given as a score, where higher is better.
All the Kaby Lake processors seem to do well in CB15 single threaded performance, given that all the K-processors can reach 4.2 GHz or higher one way or another. Nonetheless, the age of the Core i7-2600K is showing here.
Turning the tables with actual cores, and the Core i7-2600K gets a significant leg up here. The Core i5 also sits above the Core i3.
HandBrake v0.9.9: link
For HandBrake, we take two videos (a 2h20 640x266 DVD rip and a 10min double UHD 3840x4320 animation short) and convert them to x264 format in an MP4 container. Results are given in terms of the frames per second processed, and HandBrake uses as many threads as possible.
For video conversion, having small frames puts all three CPUs in a similar spot. But ramp up the frame size and we see the Kaby Lake i5 pull ahead due to IPC and instructions. The Core i3 has enough oomph to match the extra threads on the Core i7-2600K though.
Hybrid x265
Hybrid is a new benchmark, where we take a 4K 1500 frame video and convert it into an x265 format without audio. Results are given in frames per second.
With a different video conversion tool and render, the extra cores and threads of the Core i7 is more than enough to give it a 30% advantage over the Core i3-7350K. It makes me wonder if another +30% frequency would help the Core i3.
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watzupken - Friday, February 3, 2017 - link
A dual core processor is still a dual core processor even if it is unlocked and offers a high clockspeed. I still feel Kaby Lake is a lazy upgrade over Skylake considering it barely offers anything new. Just take a look at the feature page to get a sense of the "upgrades". With competition coming from ARM and AMD Ryzen, is Intel only capable of a clockspeed war just like they did for Pentium 4?CaedenV - Friday, February 3, 2017 - link
Well, to be fair Kabby Lake isn't for you and I. It is Skylake with very minor improvements mostly aimed at fixing the firmware level sleep and wake issues that manufacturers had (ie, the reason Apple didn't move to Skylake until well after release, and the botched deployment of the Surface Pro 4).Outside of that it is just skylake with a minor clock bumb, slightly better thermals, and more of the chip on 14nm.
Shadowmaster625 - Friday, February 3, 2017 - link
So it will be 2025 before an i3 beats a stock 2600K in all benchmarks? That must mean it will be 2030 before it can beat a 4.8GHz 2600K. That's crazy, considering how badly the Core2Quad compares to even a modern celeron.user_5447 - Friday, February 3, 2017 - link
Page 2: "There is one caveat however – Speed Shift currently only works in Windows 10. It requires a driver which is automatically in the OS (v2 doesn’t need a new driver, it’s more a hardware update), but this limitation does mean that Linux and macOS do not benefit from it."This is incorrect: support for Speed Shift (HW pstates) was commited to Linux kernel back in November of 2014, way before Skylake release.
https://lkml.org/lkml/2014/11/6/628
Hinton - Friday, February 3, 2017 - link
Of the 3 CPU'S Anandtech received to review, this was the only one that was marginally interesting (we didn't need a review to know Kabylake performs equally to Skylake).So of course you spent one month before reviewing it. Good for Anand that he took the money and ran.
fanofanand - Friday, February 3, 2017 - link
You may be unaware, but Ian has been kind of busy lately......Meteor2 - Sunday, February 5, 2017 - link
He has? How so?PCHardwareDude - Friday, February 3, 2017 - link
This would be interesting if the part wasn't so bloody expensive. $120 would be interesting.At this price, you're better off spending a little more and getting an i5 or spending a lot less and getting the G4600, which is also dual core kaby lake with hyperthreading.
AssBall - Friday, February 17, 2017 - link
If you have a GPUnotjamie - Friday, February 3, 2017 - link
At £170 this is the exact price I paid for my 3570k almost 5 years ago. That's what I call progress.