コメントの投稿
No title
図々しいですが、H.265のNVENC画質レビュー期待しています。(ドライバはもう対応しているのかな?)
私はGTX750あたり+H.265のGT940あたりを待っています(リネームかな?)
私はGTX750あたり+H.265のGT940あたりを待っています(リネームかな?)
No title
こ、このメモリバグ祭のタイミングで……
No title
>HEVCエンコ
今のところ、Bフレームが使えてないので、圧縮率(or画質)は厳しいかもしれません。
>メモリバグ
そうなんですよねえ…
見事にはまってます。
Nai's Benchmark, edited by VultureX
Device: GeForce GTX 970 (4.00 GB)
Memory Bus Width (bits): 256
Peak Theoretical DRAM Bandwidth (GB/s): 224.320000
Allocating Memory . . .
Chunk Size: 128 MiByte
Allocated 30 Chunks
Allocated 3840 MiByte
Benchmarking DRAM
DRAM-Bandwidth of Chunk no. 0 (0 MiByte to 128 MiByte):154.69 GByte/s
DRAM-Bandwidth of Chunk no. 1 (128 MiByte to 256 MiByte):154.59 GByte/s
DRAM-Bandwidth of Chunk no. 2 (256 MiByte to 384 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 3 (384 MiByte to 512 MiByte):154.58 GByte/s
DRAM-Bandwidth of Chunk no. 4 (512 MiByte to 640 MiByte):154.71 GByte/s
DRAM-Bandwidth of Chunk no. 5 (640 MiByte to 768 MiByte):154.57 GByte/s
DRAM-Bandwidth of Chunk no. 6 (768 MiByte to 896 MiByte):154.66 GByte/s
DRAM-Bandwidth of Chunk no. 7 (896 MiByte to 1024 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 8 (1024 MiByte to 1152 MiByte):154.61 GByte/s
DRAM-Bandwidth of Chunk no. 9 (1152 MiByte to 1280 MiByte):154.76 GByte/s
DRAM-Bandwidth of Chunk no. 10 (1280 MiByte to 1408 MiByte):154.61 GByte/s
DRAM-Bandwidth of Chunk no. 11 (1408 MiByte to 1536 MiByte):154.60 GByte/s
DRAM-Bandwidth of Chunk no. 12 (1536 MiByte to 1664 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 13 (1664 MiByte to 1792 MiByte):154.65 GByte/s
DRAM-Bandwidth of Chunk no. 14 (1792 MiByte to 1920 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 15 (1920 MiByte to 2048 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 16 (2048 MiByte to 2176 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 17 (2176 MiByte to 2304 MiByte):154.80 GByte/s
DRAM-Bandwidth of Chunk no. 18 (2304 MiByte to 2432 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 19 (2432 MiByte to 2560 MiByte):154.70 GByte/s
DRAM-Bandwidth of Chunk no. 20 (2560 MiByte to 2688 MiByte):154.67 GByte/s
DRAM-Bandwidth of Chunk no. 21 (2688 MiByte to 2816 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 22 (2816 MiByte to 2944 MiByte):154.71 GByte/s
DRAM-Bandwidth of Chunk no. 23 (2944 MiByte to 3072 MiByte):154.67 GByte/s
DRAM-Bandwidth of Chunk no. 24 (3072 MiByte to 3200 MiByte):46.47 GByte/s
DRAM-Bandwidth of Chunk no. 25 (3200 MiByte to 3328 MiByte):27.32 GByte/s
DRAM-Bandwidth of Chunk no. 26 (3328 MiByte to 3456 MiByte):22.19 GByte/s
DRAM-Bandwidth of Chunk no. 27 (3456 MiByte to 3584 MiByte):22.19 GByte/s
DRAM-Bandwidth of Chunk no. 28 (3584 MiByte to 3712 MiByte):27.32 GByte/s
DRAM-Bandwidth of Chunk no. 29 (3712 MiByte to 3840 MiByte):12.17 GByte/s
うーん。これなんの問題なんでしょうねえ…。しかもうちはなぜかL2のベンチの途中で死にますし…
遅くなるところはわりとよく変わる(3G以降全部だったり、途中だけだったり)ので、なんかドライバがおかしいかなにかなのでしょうけど…
今のところ、Bフレームが使えてないので、圧縮率(or画質)は厳しいかもしれません。
>メモリバグ
そうなんですよねえ…
見事にはまってます。
Nai's Benchmark, edited by VultureX
Device: GeForce GTX 970 (4.00 GB)
Memory Bus Width (bits): 256
Peak Theoretical DRAM Bandwidth (GB/s): 224.320000
Allocating Memory . . .
Chunk Size: 128 MiByte
Allocated 30 Chunks
Allocated 3840 MiByte
Benchmarking DRAM
DRAM-Bandwidth of Chunk no. 0 (0 MiByte to 128 MiByte):154.69 GByte/s
DRAM-Bandwidth of Chunk no. 1 (128 MiByte to 256 MiByte):154.59 GByte/s
DRAM-Bandwidth of Chunk no. 2 (256 MiByte to 384 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 3 (384 MiByte to 512 MiByte):154.58 GByte/s
DRAM-Bandwidth of Chunk no. 4 (512 MiByte to 640 MiByte):154.71 GByte/s
DRAM-Bandwidth of Chunk no. 5 (640 MiByte to 768 MiByte):154.57 GByte/s
DRAM-Bandwidth of Chunk no. 6 (768 MiByte to 896 MiByte):154.66 GByte/s
DRAM-Bandwidth of Chunk no. 7 (896 MiByte to 1024 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 8 (1024 MiByte to 1152 MiByte):154.61 GByte/s
DRAM-Bandwidth of Chunk no. 9 (1152 MiByte to 1280 MiByte):154.76 GByte/s
DRAM-Bandwidth of Chunk no. 10 (1280 MiByte to 1408 MiByte):154.61 GByte/s
DRAM-Bandwidth of Chunk no. 11 (1408 MiByte to 1536 MiByte):154.60 GByte/s
DRAM-Bandwidth of Chunk no. 12 (1536 MiByte to 1664 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 13 (1664 MiByte to 1792 MiByte):154.65 GByte/s
DRAM-Bandwidth of Chunk no. 14 (1792 MiByte to 1920 MiByte):154.72 GByte/s
DRAM-Bandwidth of Chunk no. 15 (1920 MiByte to 2048 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 16 (2048 MiByte to 2176 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 17 (2176 MiByte to 2304 MiByte):154.80 GByte/s
DRAM-Bandwidth of Chunk no. 18 (2304 MiByte to 2432 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 19 (2432 MiByte to 2560 MiByte):154.70 GByte/s
DRAM-Bandwidth of Chunk no. 20 (2560 MiByte to 2688 MiByte):154.67 GByte/s
DRAM-Bandwidth of Chunk no. 21 (2688 MiByte to 2816 MiByte):154.63 GByte/s
DRAM-Bandwidth of Chunk no. 22 (2816 MiByte to 2944 MiByte):154.71 GByte/s
DRAM-Bandwidth of Chunk no. 23 (2944 MiByte to 3072 MiByte):154.67 GByte/s
DRAM-Bandwidth of Chunk no. 24 (3072 MiByte to 3200 MiByte):46.47 GByte/s
DRAM-Bandwidth of Chunk no. 25 (3200 MiByte to 3328 MiByte):27.32 GByte/s
DRAM-Bandwidth of Chunk no. 26 (3328 MiByte to 3456 MiByte):22.19 GByte/s
DRAM-Bandwidth of Chunk no. 27 (3456 MiByte to 3584 MiByte):22.19 GByte/s
DRAM-Bandwidth of Chunk no. 28 (3584 MiByte to 3712 MiByte):27.32 GByte/s
DRAM-Bandwidth of Chunk no. 29 (3712 MiByte to 3840 MiByte):12.17 GByte/s
うーん。これなんの問題なんでしょうねえ…。しかもうちはなぜかL2のベンチの途中で死にますし…
遅くなるところはわりとよく変わる(3G以降全部だったり、途中だけだったり)ので、なんかドライバがおかしいかなにかなのでしょうけど…
No title
1回目はベンチが途中で死にますが2回目からは大丈夫みたいです(うちのはそうでした)
まあnVidiaは仕様で押し通すみたいですがどうなるやら
まあnVidiaは仕様で押し通すみたいですがどうなるやら
Re: No title
仕様…まあメモリ4GB(ただし全部速いとは言ってない)…って…
そりゃねーだろってかんじですよねえ。
そりゃねーだろってかんじですよねえ。