The Skylake Core i3 (51W) CPU Review: i3-6320, i3-6300 and i3-6100 Tested
by Ian Cutress on August 8, 2016 9:00 AM ESTReal World Performance
The dynamics of CPU Turbo modes, both Intel and AMD, can cause concern during environments with a variable threaded workload. There is also an added issue of the motherboard remaining consistent, depending on how the motherboard manufacturer wants to add in their own boosting technologies over the ones that Intel would prefer they used. In order to remain consistent, we implement an OS-level unique high performance mode on all the CPUs we test which should override any motherboard manufacturer performance mode.
All of our benchmark results can also be found in our benchmark engine, Bench.
Dolphin Benchmark: link
Many emulators are often bound by single thread CPU performance, and general reports tended to suggest that Haswell provided a significant boost to emulator performance. This benchmark runs a Wii program that raytraces a complex 3D scene inside the Dolphin Wii emulator. Performance on this benchmark is a good proxy of the speed of Dolphin CPU emulation, which is an intensive single core task using most aspects of a CPU. Results are given in minutes, where the Wii itself scores 17.53 minutes.
Skylake saw a good boost with our Dolphin benchmark, and it remains a single-thread driven event. The 100 MHz difference between the i3-6320 and i3-6300 amounts to just over a second difference, but one step back to the i3-6100 is another 42 seconds. This is one of the few instances where the 3 MB of L3 cache on the i3-6100 makes a significant difference. The i5-6600 sits in the middle of our i3 parts due to its lower CPU frequency but higher cache.
WinRAR 5.0.1: link
Our WinRAR test from 2013 is updated to the latest version of WinRAR at the start of 2014. We compress a set of 2867 files across 320 folders totaling 1.52 GB in size – 95% of these files are small typical website files, and the rest (90% of the size) are small 30 second 720p videos.
WinRAR is a variable thread test, so the CPUs with more threads all pull ahead of the i3 parts. Again, we see a crescendo from the i3-6320 to the i3-6300 and the i3-6100, with the i3-6100 being slightly further out due to its reduced L3.
3D Particle Movement v2
The second version of this benchmark is similar to the first, however it has been re-written in VS2012 with one major difference: the code has been written to address the issue of false sharing. If data required by multiple threads, say four, is in the same cache line, the software cannot read the cache line once and split the data to each thread - instead it will read four times in a serial fashion. The new software splits the data to new cache lines so reads can be parallelized and stalls minimized. As v2 is fairly new, we are still gathering data and results are currently limited.
The updated 3DPM benchmark likes good cache management and a high frequency with lots of threads. As from our Carrizo review, the AMD X4 845 does really well here, beating the i3-6100TE which has a much lower frequency. For the i3 parts, we see a regular staircase between the three, outpacing the much older FX-6350.
Web Benchmarks
On the lower end processors, general usability is a big factor of experience, especially as we move into the HTML5 era of web browsing.
Mozilla Kraken
Kraken also enjoys Skylake CPUs, with a preference for high frqeuency parts as well. The regular staircase is in effect between the three, showing how L3 cache makes little difference here.
Google Octane v2
Octane has a similar performance to Kraken, with the Skylake CPUs out in top with the staircase results. The i5-6600 sits in the middle, despite having four physical cores, but restrained to four threads. Because of this and our regular staircase, we can see that the L3 cache plays little role here and the threads are very lightweight. The resources on the FX CPUs unfortunately do not do well here.
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jabber - Tuesday, August 9, 2016 - link
Yeah, unfortunately, a lot of IT guys assume that because they run quad cores at 100% all day long with 32GB of ram that Helen on the front desk or Mike in Sales needs the same. They don't. Similar to Ratman I sell a lot of recon Dell and HP ex corporate machines to my small business customers. 2010 spec machines with dual core 3GHz Pentiums with 4-8GB of ram. They can buy three of them for the cost of a 2016 model. They love them. If they need a real boost, a 120GB SSD gets slapped in. They pee their pants with excitement when that happens. Standard business computing was finally catered for many many years ago. It hasn't really changed.BrokenCrayons - Tuesday, August 9, 2016 - link
Decrepit Core 2 Duos are indeed perfectly acceptable for poking around on the internet and handling basic office workloads. I'm fairly happy using a T2310-based laptop (C2D@1.46GHz) with 2GB of RAM and a recently purchased 500GB 5400 RPM drive for most of my day-to-day computing tasks. I can feel the system's performance catching up when I ask the Intel x3100 graphics card to chug through anything higher than 720p video on Youtube. Most of my gaming is streamed through Steam so the box on the user end isn't as important as the computer that actually runs the game with reduces my concern pretty significantly when it comes to keeping my laptop up-to-date. I'm pretty sure I can squeeze another year or two out of it before handing it over to the electronics recycling center.Like jabber says, office work has long since been addressed by technological advancements and _most_ home computing needs aside from throwing around modern games have too.
Icehawk - Tuesday, August 9, 2016 - link
We have some C2Ds at work, and yeah for a regular office job they are fine IF they have 8gb of RAM, unfortunately these machines are so old keeping them running or upgrading is a hassle. And at least here, unless you are in IT or a programmer good luck getting a SSD. A newer i3 with 8gb and SSD is definitely enough for any casual user at work or home for sure.BrokenCrayons - Wednesday, August 10, 2016 - link
It depends a lot on the workload. 2GB is sufficient for almost everything I do on a home computer except for the occasional game. In an office setting 4-8GB would be better just because workforce users tend to leave a larger number of programs open at once. I do agree that in a workplace, computers should still be replaced every 3-5 years due to upgrade and maintenance issues that crop up as they age past that point even if the system performance is still perfectly adequate.lilmoe - Monday, August 8, 2016 - link
Do tell how to spread a select query (with a join or two) on multiple equally tasked threads when you only need to query a huge table (with the others being relatively tiny).i3s are my go-to recommendation for clients needing POS stations and others that only need a client/terminal for an ERP database.
lilmoe - Monday, August 8, 2016 - link
What's being multithreaded is the UI, almost exclusively. And that's for responsiveness rather than speed, in which 2 cores more than suffice.elbert - Monday, August 8, 2016 - link
Thats not how it works. This is like arguing against dual cores because there was no threaded software. Chicken and the egg is a fun game but the process has to come first.bug77 - Tuesday, August 9, 2016 - link
There's no chicken and egg here. We've had 8 thread capable CPUs for years. But we simply don't need them at home or for typical desktop usage.They're great for 3D rendering, video editing or programming, but they're not for everyone.
elbert - Tuesday, August 9, 2016 - link
Dual cores aren't for everyone so lets just agree they should moved to a tablet or watch. Intel needs to move on 6 core Kaby Lake for the main steam at the very least.bug77 - Wednesday, August 10, 2016 - link
No, we don't agree on that. Dual core is plenty for typical web browsing and occasionally writing a paper for school. I'm on an i5 for years and I rarely see all 4 cores put to use at the same time.You're entitled to your opinion, of course, but I don't agree with it.