9 ms·
7950x3d w/ 128GB at stock timings (~3200MT/s?). Showed a high base but no increase with threads, need to investigate what is happening. 1 54.7 2 50.6 3 4
by andrewgross 3y ago
7950x3d w/ 128GB at stock timings (~3200MT/s?). Showed a high base but no increase with threads, need to investigate what is happening.
1 54.7
2 50.6
3 49.6
4 48.2
5 47.9
6 47.4
7 47.1
8 46.6
9 46.5
10 46.2
11 46.1
12 45.9
13 45.8
14 45.7
15 45.7
16 45.7
17 45.7
18 45.8
19 45.9
20 45.8
21 45.8
22 45.6
23 45.6
24 45.5
25 45.5
26 45.5
27 45.5
28 45.4
29 45.4
30 45.4
31 45.4
32 45.4
- shivam543 3y agoFor 2 x 3200 MHz, 51.2 GB/s is the theoretical limit. I guess your single core is good enough to use all bandwidth. How many RAM sticks do you have?
- andrewgross 3y ago4 x 32GB for now. I need to investigate manual OC as EXPO doesn't work with all 4 slots populated. Another option is to try the 192GB 4x48GB Corsair kits at 5200.
- seiferteric 3y ago7950x with 32GB @ 6000MT/s: 1 52.6 2 78.1 3 71.0 4 74.3 5 71.3 6 72.5 7 70.0 8 69.6 9 68.4 10 68.7 11 68.5 12 68.3 13 68.3 14 68.0 15 67.8
- Stagnant 3y ago7950x with 4x32GB @ 3800MHz here. Getting similar results except my single thread performance is the worst (around 40), otherwise it looks almost identical. I assume my poor single thread perf is due to having capped max CPU core clock at 4.5Ghz. Getting 4 sticks to boot was a pain, haven't really bothered to change anything once I finally got it running stable.
- sliken 3y agoRyzen 9 7900 2x48GB AMD recommends DDR5-6000, so I underclocked DDR5-6400 to DDR5-6000. The 96GB ram was under $300. $ ./a.out 1 59.2 2 76.9 3 66.8 4 68.7 5 64.0 6 67.1 7 63.9 8 66.0 9 64.0 10 65.6 11 64.0 12 65.5 13 65.6 14 66.0 15 66.0 16 65.8 17 65.1 18 65.2 19 65.1 20 65.4 21 64.6 22 65.2 23 65.5 24 65.2