dexvx wrote:Good job. Ryzen is probably Sandybridge level IPC.
Ryzen is more or less at Skylake level IPC. Currently testing a Ryzen 1300x (4 cores, 4 threads, 8MB cache) against a 6600k. With both CPUs running at 4GHz (300Mhz overclock for the 1300x over turbo speed), performance is nearly identical. Performance difference seems to be 1-2%, witch each chip performing better then the other in certain tastks, but by very little. Rhe Ryzen chip seems to have a tiny advantage in FPU intensive tasks like 3dmark fire strike physics test, FPU Mandel and FPU Julia, while the i5 is a tiny bit when it comes to encryption and encoding. Frankly I was expecting it to be the other way around. I used the same memory modules on both systems (Corsair Vengeance DDR4 3000MHz dual channel kit). Both use MSI mainboards - a Z170 Krait Gaming for the i5, and a B350M Arctic Mortar for the 1300x.
So far, ryzen is shaping up really well, and the cheap 1300x makes a great base for a gaming PC, especially if you plan to overclock, as my 1300x sample does 4GHz on air using a (modded) Deepcool GamerStorm Lucifer cooler. I've been able to push it to 4.2 GHz, but it seems to take exponentially more voltage to get the chip stable over 4GHz then it did to get it to said 4GHz. It will run at 3.8GHz @ stock voltage tough.
elod wrote:Even the 8350 was a big step upwards from the 955. Ryzen being much better is a nobrainer. Ryzen 2 even more so.
... no. The Phenom II series has faster FPUs then the FX series. A 4GHz Phenom II X6 will kick the crap out of a 8350 any day. For one it's FPUs are ~10-12% faster, and second, it has two more then the FX 8350. While an 8 core chip, the 8350 only has 4 FPUs, while a Phenom II X6 has 6 - that is notable in both games and benchmarks. The trick here is finding a good motherboard and a good sample that will do 4GHz, as most top out at about 3.8. To really get the most out of a Phenom II chip, you need to push it's northbridge clocks as far as they will go. That part of the chip also dictates how fast the L3 cache runs, and that has a serious impact on performance. The fastest setup I could get going is a Phenom II X6 1060 BE running at 3.8GHz, with the northbridge running at 3200MHz and the memory at 2000MHz (CL10). At those speeds, it single threaded games it's on par with a 1st gen Lynnfield core i5 760, and up to 40% faster in multi-threaded games like Ashes of the Singularity. I was also impressed by how cool Phenom II chips run, despite the relatively high vCore.
The FX series is faster when it comes to encoding, encryption and productivity apps - but when it comes to games and physics, the old K10 is a faster chip.