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Number crunching :
APU or CPU with more cores?
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Ryan Munro Send message Joined: 5 Feb 06 Posts: 63 Credit: 18,519,866 RAC: 10 ![]() |
Any idea which would be better? a Ryzen 2400g running say 7 CPU units and one GPU unit vs say a 2700 running 16 CPU units, which would put out the most work? Looking at putting together a small dedicated box and unsure which CPU option would be best? |
![]() Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 ![]() |
Any idea which would be better? a Ryzen 2400g running say 7 CPU units and one GPU unit vs say a 2700 running 16 CPU units, which would put out the most work? I have a 2400g running under Windows. It is a "Zen" cpu, not a Zen+ cpu. The Vega gpu is a BTN (Better Than Nothing) gpu not a high performance cruncher. I also have a 2700 and with sufficient cooling (especially with after-market cooling) it should run 14 threads quite briskly. Even with the stock cooler you MIGHT be able to run 3.7Ghz. To maximize cpu performance on a larger thread cpu, the Boinc Manager needs to be set to use 90% of available cores. To maximize on a 4c/8t cpu it needs to be set at 75% of available cores. The 2400g gpu does crunch faster than the cpu's on the 2400g but the cpus on the 2400g crunch slower than the 2700 Zen+ cpu (I think). Tom A proud member of the OFA (Old Farts Association). |
Ryan Munro Send message Joined: 5 Feb 06 Posts: 63 Credit: 18,519,866 RAC: 10 ![]() |
Yea I was wondering if the GPU in the 2400g would make up for / exceed the performance of the extra 4 cores on say the 2700 |
![]() ![]() ![]() Send message Joined: 30 Nov 05 Posts: 282 Credit: 6,916,194 RAC: 60 ![]() ![]() |
My gut feeling is no, but I have nothing to back that up with. I assume you would not be using a discrete GPU with the 2700? Seti@home classic: 1,456 results, 1.613 years CPU time |
![]() Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 ![]() |
Yea I was wondering if the GPU in the 2400g would make up for / exceed the performance of the extra 4 cores on say the 2700 If you are running SMT it would be 6 threads vs. 14 threads. So there would an 8 thread difference. Assuming the 75% / 90% cpu settings I mentioned earlier. My 2400g gpu takes an 30-55 minutes per MB task. My 2400g cpu takes 2 hours per task. Under Windows 10. I can't compare my 2700 directly because it is running Linux with optimization. It is currently running about an hour / cpu task. I have an Intel running Windows 10. It is processing cpu tasks at 2 hours or faster. So I believe that a 2700 on a robust MB (good VRM's) with good cooling should have more production (without gpu crunching) than a 2400g with gpu crunching. Tom A proud member of the OFA (Old Farts Association). |
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