Below are several benchmarks articles for Win10. They cover general use, gaming, SSD’s, and audio.
In general they found performance on par with Windows 8. Folks running new SSD’s on PCIe NVMe should look at upgrading. Ditto for people working with audio.
For the gaming benchmarks, keep in mind DX12 games are just coming out.
If you know of a benchmark article that should be included let me know.
TechSpot – Windows 10 vs. Windows 8.1 vs. Windows 7 Performance
“After watching near-identical results pour in on most tests, from application to encoding, to storage and gaming, it’s hard to read too much into results as there are many variables we can’t control…The same hardware that currently runs Windows 7 competently can be upgraded to Windows 10 with no issues whatsoever on the performance front.”
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TechSpot – How Much Memory Should You Get? 4GB vs. 8GB vs. 16GB Performance Tested
“Overall, we see 8GB as the standard right now”
Hot Hardware – Windows 10 Vs Windows 8 Game Performance Review, Major Titles On Microsoft’s New OS
“So, should gamers dive in and upgrade to Windows 10? That depends. Our tests results show, there is no added performance gain…Beyond the lukewarm bench results, we’ve had no problems or crashes with Windows 10. It boots faster than Win8 and the UI is clean and intuitive. We don’t miss the touch-focused tiled environment and the reprised, updated Start Menu is very welcomed.”
ARS Technica – Gamers: It’s safe to upgrade to Windows 10
“Those players eager to upgrade to Microsoft’s latest and greatest OS can, for the most part, jump in without worry. Nvidia and AMD’s Windows 10 drivers seem to be doing the trick, with no real performance difference compared to the older OS. Suffice it to say, if you’re still rocking Windows 7—which is generally anywhere from 5 to 20 percent slower than Windows 8 and 10—it is probably time to finally make the jump.”
PCWorld – Windows 10 vs. Windows 8: Performance benchmarks show a close battle for fastest
“Windows 10 seems to offer basically no relevant performance advantage over Windows 8 in mainstream tests”
TweakTown – Microsoft Windows 10 vs. Windows 8.1 SSD Storage Performance Analysis
“As far as SATA is concerned, we are comfortable in saying Windows 10 delivers performance that is equivalent to Windows 8.1…Overall, we prefer RST 13.6 to RST 14.5 and that is the driver we will be using at least for now, till a better one comes along…Looking at PCIe NVMe, it is pretty clear that Windows 10 delivers superior performance in comparison to Windows 8.1.”
Windows 10 for Pro Audio by PCAudioLabs
“Windows 10 is proving to be a solid contender for the next best OS for digital creativity. With reduced latency on the WDM audio engine, combined with impressive benchmarks and broad compatibility even in technical preview, the OS looks to be one of the best yet.“