5 ms·
AMD Ryzen 3 Linux Benchmarks
- lindgrenj6 9y agoReally cool to see the Ryzen 3 at i3 prices beating i5s in some benchmarks! Really looking forward to the future of AMD.
- dotdi 9y ago..and some Ryzen5 beating i7. Pretty nice.
- eganist 9y agoSource: http://www.phoronix.com/scan.php?page=article&item=amd-ryzen-3 http://www.phoronix.com/scan.php?page=article&item=amd-ryzen...
- et2o 9y agoWhat's going on in the Himeno poisson pressure benchmark? Scientific optimizations all intel processors have but AMD lack?
- dahauns 9y agoIIRC it's rather AVX-heavy.
- CyberDildonics 9y agoZen cores actually have half sized SIMD units compare to Intel. They will execute AVX instructions, but for programs that use AVX well, Intel should win. Using AVX at all is still rare, using it well even more so, but Intel's AVX SIMD performance is pretty stellar.
- Dylan16807 9y agoYeah, the execution unit differences are really complicated. Ryzen has four ALUs plus four partial vector units. These vector units are all 128 bit. Two can add and two can multiply. An adder and a multiplier can combine to do FMA. Skylake has four math ports total, all of which can do basic ALU operations. Two of them have 256 bit vector capabilities, and each of those can add or multiply or FMA. A third has limited vector capabilities. 10 core (and higher?) Skylake-X chips upgrade those limited capabilities into an entire new 512-bit vector unit, also capable of FMA. Depending on your exact needs, Ryzen can be slower or faster than Skylake, but it's usually slower on programs stuffed full of vector math, especially FMA. I think I got that mostly correct.
- zelos 9y agoPresumably, as a brand new architecture, there's more chance of AMD improving single-core performance (either through frequency or IPC) in the next iteration of Ryzen than Intel doing the same with Core i3/5/7?
- snuxoll 9y agoClock speed increases are a likely benefit we'll see when Zen 2 is released on Global Foundries 7nm+ process, right now that's the biggest reason Zen seems to fail against Kaby Lake in single-threaded performance minus some minor IPC differences. A Ryzen 7 1800X tops out at 4GHz boost (it can usually run stable at 4GHz overclocked with a vCore bump, but you're playing the silicon lottery) meanwhile a Core i7-7700K has a base frequency of 4.2GHz - a 5% difference, ignoring the 7700K's 4.5GHz boost frequency. On a similar note, it looks like fab processes are likely hurting AMD with their GPU's. From what I can gather they opted to produce Vega at GloFo's fab on their 14nm proccess, which might explain why they are shipping the air-cooled Vega 64 with a 1.24GHz base clock at a pretty ludicrous 295W TDP.
- LordKano 9y agoI'm most impressed by the Ryzen 7. Only the i9 is faster and it's less than half the price of the i9 7900. It outperforms the i7 5960 and it's similarly less than half the price. AMD can compete well in the enthusiast-on-a-budget segment of the market.
- shmerl 9y agoI'm impressed too, if only it wouldn't have those nasty mce and segfault bugs, and AMD could actually explain what's going on after all this time testing it.
- monkmartinez 9y agoI don't know why you are being downvoted (I am no expert), but it seems like the segfaults are a big deal.
- tscs37 9y agoAFAIK it's currently being blamed on a bug in the PHP testsuite that segfsults in Intel too.
- shmerl 9y agoSegfaults happen under heavy compilation workload - nothing to do with PHP specifically, for instance compiling Mesa produces it. And mce bug means random freezes and reboots, when CPU core wakes up from some sleep C state.
- tscs37 9y agoI'm still quite certain that some test suite had a faulty PHP benchmark that segfaulted on both vendors and people claimed it was Ryzen only. Oh well. Either way, IMO it's not a roadblock for office and gaming usage.
- 9y ago
- aclsid 9y agoRyzen performance is awesome, but the design of that page, omg, it is almost unusable based on how bad the information is presented on Linux/Firefox.
- kmfrk 9y agoCPU/GPU benchmarks always look like complete ass, I've considered just designing a simplified design template people can use on websites or in video reviews. Digital Foundry's frame rate and frame time graphs are particularly egregious.
- overcast 9y agoI had the same reaction immediately as I opened that page. Without even known the context, I could have guessed this was a Linux related site. It's as if the entire Linux ecosystem consistently wants to present the ugliest interfaces to their end users. I don't get it.
- deleted 9y ago[deleted]
- BeeOnRope 9y agoTake any tests with scaling governor "powersave" using the intel_pstate with a grain of salt. This powersave mode has nothing in common with the acpi_cpufreq's version of powersave and is quite aggressive at clocking down the CPU, even in periods of 100% CPU usage (when it decides that the throughput benefit of remaining highly clocked isn't worth it). This happens especially on memory-bound codes. See for example https://stackoverflow.com/a/45201673/149138 https://stackoverflow.com/a/45201673/149138 and https://stackoverflow.com/questions/43343231/enhanced-rep-movsb-for-memcpy https://stackoverflow.com/questions/43343231/enhanced-rep-mo... - both of which show large performance variance between powersave and performance. In the first example, the CPU clocks down indefinitely to 1.1 GHz from a nominal 2.6 GHz despite being 100% CPU-bound, and performance is cut in half. Despite having the same governor name, "powersave" with acpi-cpufreq has no relationship. It's using low-frequency software control and generally ramps up to 100% frequency (highest pstate) once CPU-bound code starts running and stays there.
- overcast 9y agoSounds like the perfect option for people in the market for a new gaming machine. You absolutely don't need top of the line performance in CPU anymore. My six year old Xeon X5675 is still killing it, which only recently replaced an I7 920 from 2008 on the same motherboard, and RAM. Besides swapping out video cards every couple of years, this thing maxes out anything at 2560x1600.
- el_s3v3n 9y agoI'm blow away by the fact that nobody here is calling out the shit setup for testing. E.G. the Intel rigs have 16 gigs of RAM, but the 8370 rig has 8 gigs. Wat? They don't standardize RAM, SSD, or anything across platforms. Shit benchmarks.
- 0xbear 9y agoNot an option until they fix Linux crashes and hangs. Threadripper would be pretty neat for a 4 GPU deep learning server, but I've had nothing but trouble with plain Ryzen