Upgrading from an Intel Core i7-2600K: Testing Sandy Bridge in 2019
by Ian Cutress on May 10, 2019 10:30 AM EST- Posted in
- CPUs
- Intel
- Sandy Bridge
- Overclocking
- 7700K
- Coffee Lake
- i7-2600K
- 9700K
CPU Performance: Office Tests
The Office test suite is designed to focus around more industry standard tests that focus on office workflows, system meetings, some synthetics, but we also bundle compiler performance in with this section. For users that have to evaluate hardware in general, these are usually the benchmarks that most consider.
All of our benchmark results can also be found in our benchmark engine, Bench.
PCMark 10: Industry Standard System Profiler
Futuremark, now known as UL, has developed benchmarks that have become industry standards for around two decades. The latest complete system test suite is PCMark 10, upgrading over PCMark 8 with updated tests and more OpenCL invested into use cases such as video streaming.
PCMark splits its scores into about 14 different areas, including application startup, web, spreadsheets, photo editing, rendering, video conferencing, and physics. We post all of these numbers in our benchmark database, Bench, however the key metric for the review is the overall score.
Something like PCMark doesn't really show the scale of the differences, except in the main tests that are fully multithreaded where the 9700K pulls out a bigger lead. The 7700K only has a 17% lead over the 2600K, which goes down to 5% when compared to the overclocked version. This is perhaps more of an indication of how often you might feel the difference with a new 7700K over an overclocked 2600K: 5% of the time. It depends on your load balance, of course.
Chromium Compile: Windows VC++ Compile of Chrome 56
A large number of AnandTech readers are software engineers, looking at how the hardware they use performs. While compiling a Linux kernel is ‘standard’ for the reviewers who often compile, our test is a little more varied – we are using the windows instructions to compile Chrome, specifically a Chrome 56 build from March 2017, as that was when we built the test. Google quite handily gives instructions on how to compile with Windows, along with a 400k file download for the repo.
In our test, using Google’s instructions, we use the MSVC compiler and ninja developer tools to manage the compile. As you may expect, the benchmark is variably threaded, with a mix of DRAM requirements that benefit from faster caches. Data procured in our test is the time taken for the compile, which we convert into compiles per day.
Our compile test in this case loves the cores of the 9700K over SMT, but in this case we again see the overclocked 2600K get inbetween the 7700K and the 2600K at stock. Even without an overclock on the 7700K, that's an easy gain to amortize.
3DMark Physics: In-Game Physics Compute
Alongside PCMark is 3DMark, Futuremark’s (UL’s) gaming test suite. Each gaming tests consists of one or two GPU heavy scenes, along with a physics test that is indicative of when the test was written and the platform it is aimed at. The main overriding tests, in order of complexity, are Ice Storm, Cloud Gate, Sky Diver, Fire Strike, and Time Spy.
Some of the subtests offer variants, such as Ice Storm Unlimited, which is aimed at mobile platforms with an off-screen rendering, or Fire Strike Ultra which is aimed at high-end 4K systems with lots of the added features turned on. Time Spy also currently has an AVX-512 mode (which we may be using in the future).
For our tests, we report in Bench the results from every physics test, but for the sake of the review we keep it to the most demanding of each scene: Ice Storm Unlimited, Cloud Gate, Sky Diver, Fire Strike Ultra, and Time Spy.
GeekBench4: Synthetics
A common tool for cross-platform testing between mobile, PC, and Mac, GeekBench 4 is an ultimate exercise in synthetic testing across a range of algorithms looking for peak throughput. Tests include encryption, compression, fast Fourier transform, memory operations, n-body physics, matrix operations, histogram manipulation, and HTML parsing.
I’m including this test due to popular demand, although the results do come across as overly synthetic, and a lot of users often put a lot of weight behind the test due to the fact that it is compiled across different platforms (although with different compilers).
We record the main subtest scores (Crypto, Integer, Floating Point, Memory) in our benchmark database, but for the review we post the overall single and multi-threaded results.
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Death666Angel - Sunday, May 12, 2019 - link
I've done some horrendous posts when I used my phone to make a comment somewhere. Mostly because my phone is trained to my German texting habits and not my English commenting habits. And trying to mix them leads to sub par results in both areas, so I mostly stick to using my phone for texting and my PC and laptop for commenting. But sometimes I have to write something via my phone and it makes a beautiful mess if I'm not careful.Death666Angel - Sunday, May 12, 2019 - link
Well, laptops and desktops (with monitors) are in a different category anyway, at least that's how I see it. :-)I work with a 13.3" laptop with a 1440p resolution and 150% scaling. It's not fun, but it does the job. The advantage of the larger screen real estate with a 15" or 17" laptop is outweight by the size and weight increase. I've also done work on 1024x768 monitors and it does the job in a pinch. But I've tried to upgrade as soon as the new technology was established, cheap and good enough to make it worth it without having to pay the early adopter fee or fiddle around to get it to work. Even before Win7 made it a breeze to have multiple windows in an orderly grid, I took full advantage of a multi window and multi program workflow for research, paper/presentation writing, editing and media consumption. So it is a bit surprising to see someone like Ian, a tech enthusiast with a university doctorate be so late to great tech that can really make life easier. :D
Showtime - Saturday, May 11, 2019 - link
Great article. Was hoping to see all the CPU's tested (my 4770k), but I think it shows enough. This isn't the 1st article showing that lesser CPU's can run close to the best CPU's when it come to 4k gaming. Does that look to change any time soon? I was thinking I should upgrade this year, but would like to know if I should be shooting for an 8 core, or if a 6 will be a decent enough upgrade.Consoles run slower 8 core proc's that are utilized more efficiently. At some point won't pc games do the same?
Targon - Tuesday, May 14, 2019 - link
There is always the question about what you do on your computer, but I wouldn't go less than 8 cores(since 4-core has become the base on the desktop, and even laptops should never be sold with only 2 cores IMO). If you look at the history, when AMD wasn't competitive and Intel stopped trying to actually innovate, quad-core was all you saw on the desktop, so game developers didn't see a reason to support more threads(even though it would have made sense). Once Ryzen came out with 8 cores, and Intel finally responded, you have to expect that every game developer will design with the potential that players will have 8+ core processors, so why not design with that in mind?Remember, a program that is properly multi-threaded in design will work on lower-core processors, but will scale up well when processors with more cores are being used. So going forward, quad-core would work, but 8 or more threads WILL feel a lot better, even for overall use.
CaedenV - Saturday, May 11, 2019 - link
This was a fascinating article! And what I am seeing in the real world seems to reflect this.For the most part, the IPC for general use has improved, but not by a whole lot. But if doing anything that hits the on-chip GPU, or requiring any kind of decrypt/encrypt, then the dedicated hardware in newer chips really makes a big difference.
But at the end of the day, in real-world scenarios, the CPU is simply not the bottle neck for most people. I do a lot of video ripping (all legally purchased, and only for personal use), and the bottleneck is squarely on the Blu-Ray drive. I recently upgraded from a 4x to a 10x drive, and the performance bump was exactly what was expected. Getting a faster CPU or GPU will not help there.
I do a bit of video editing, and the bottle-neck there is still almost always in storage. The 1gbps connection to the NAS, and the 1GBps connection to my RAID0 of SSDs.
I do a bit of gaming at 4k, and again the bottleneck there is squarely on the GPU (GTX1080), and as your tests show, at lower resolution my chip will be slower than a new chip... but still faster than the 60-120fps refresh of the monitor.
The real reason for an upgrade simply isn't the CPU for most people. The upgrade is the chipset. Faster/more RAM, M.2 SSDs, more available throughput for expansion cards, faster USB/USB-C ports, and soon(ish) 10gig Ethernet. These are the things that make life better for the enthusiast and the normal user; and the newer CPUs are simply more capable of taking advantage of all the extra throughput, where Sandy Bridge would perhaps choke when dealing with these newer and faster interfaces that are not available to it.
All that said; I am still not convinced to upgrade. Every previous computer was simply broken, or could not do something after 2-3 years, so an upgrade was literally necessary. But now... my computer is some 8 years old now, and I am amazed at the fact that it still does it all, and does it relatively quickly. Without it being 'broken' it is hard to justify dropping $1000+ into a new build. I mean... I want to upgrade. But I also want to do some house projects, and replace a car, and do stuff with the kids... *sigh* priorities. Part of me wishes that it would break to give me proper motivation to replace it.
webdoctors - Saturday, May 11, 2019 - link
Great timing, I've been using the same chip for 7 or 8 years now and never felt the need to upgrade until this year, but I will upgrade end of this year. DDR4 finally dropped in price and my GTX1070TI I think is getting throttled when the CPU ain't overclocked.atomicWAR - Saturday, May 11, 2019 - link
Gaming at 4K with a i7 3930K @ 4.2ghz (4.6ghz capable when needed) with 2 GTX 1080s...I was planning a new build this year but after reading this I may hold off even longer.wrkingclass_hero - Sunday, May 12, 2019 - link
I've got a 3930K as well. I was planning on upgrading to Threadripper 3 when that comes out, but if it gets delayed I may wait a bit longer for a 5mm Threadripper.mofongo7481 - Saturday, May 11, 2019 - link
I'm still using a sandy bridge i5 2400 overclocked to 3.6Ghz. Still playing modern stuff @ 1080p and pretty enjoyable.Danvelopment - Sunday, May 12, 2019 - link
I think the conclusion is slightly off for gaming, from what I could see it's not that the newer processors were only better higher resolutions, it's that the newer systems were better able to keep the GPU fed with data, resulting in a higher maximum frame rate.So at lower resolutions/quality settings, when the GPUs could let loose they could achieve much higher FPS.
My conclusion from the results wouldn't be to keep it for higher res gaming, but to keep it for gaming if you're still using a 60Hz display (which I am). I bet if you tuned quality settings for all of the GPUs to run at 60 FPS your results would sit pretty close at any resolution.
I'm currently running an E5-2670 for my gaming machine with quad channel DDR3 (4x8GB) and a 1070. That's the budget upgrade path I'd probably recommend at 60Hz.