FirePro D700,D500和D300的双精度浮点

GavinZYF

Apple新的Mac Pro正式开卖了，官网明确标注了D700,D500和D300的双精度浮点性能

http://store.apple.com/us/buy-mac/mac-pro?product=ME253LL/A&step=config

Dual AMD FirePro D300 with 2GB GDDR5
Configure your Mac Pro with dual AMD FirePro D300 GPUs for incredibly fast and responsive graphics. Equipped with 2GB of VRAM each on a 256-bit-wide memory bus providing 160GB/s of bandwidth, each FirePro D300 GPU has 1280 stream processors delivering up to 2 teraflops of processing power.

Dual AMD FirePro D500 with 3GB GDDR5
Configure your Mac Pro with dual AMD FirePro D500 GPUs for additional graphics memory bandwidth and processing power. Equipped with 3GB of VRAM each on a 384-bit-wide memory bus providing 240GB/s of bandwidth, each FirePro D500 GPU has 1526 stream processors delivering up to 2.2 teraflops of processing power each. The FirePro D500 supports fast double-precision computations, executing at one-quarter the performance of single-precision floating point rather than the 1/16 performance seen in the D300 and most consumer GPUs.

Dual AMD FirePro D700 with 6GB GDDR5
Tackle the most demanding 3D, 4K video, and scientific visualization problems by configuring your Mac Pro with dual AMD FirePro D700 graphics cards. Equipped with 6GB of VRAM each on a 384-bit-wide memory bus providing 264GB/s of bandwidth, each FirePro D700 GPU has 2048 stream processors delivering up to 3.5 teraflops of processing power each, for a total of 7 teraflops. The FirePro D700 supports fast double-precision computations, executing at one-quarter the performance of single-precision floating point rather than the 1/16 performance seen in the D300 and most consumer GPUs.


D700和D500的双精度浮点为单精度浮点性能的1/4，D300为1/16。

xzyzy

麻木中，不关心

eraser666

一个Tahiti一个Pitcairn

你想说明啥？能玩出什么花样来

goodayoo

现在连NV的双精度都比单精度下降了很多了，显卡主要还是用来玩游戏的，OK？

iamw2d

这两个没什么好看的 hawaii的双精度我比较想知道

NG6

来个差距还挺大，话说渲染真的很需要双精度?

樟树

主要是高端低端的区别。
两代架构内应该也是高端卡双精度要高，如果不关掉的话。
OpenCL要求支持双精度，所以要意思意思做一下