参数项目 | R9 280X |
CPU架构 | 28nm |
API支持 |
DirectX 12, Mantle, OpenGL 4.3 |
PCI-E版本 |
3.0 |
AMD电源技术 |
支持 |
4K分辨率支持 |
支持(4K 60SST或MST) |
DDMA视频 |
支持 |
HDMI(包含4K,立体声3D,Deep Color, X.V. Color) |
支持 |
AMD环音 |
不支持 |
最大显示器数量 |
6(通过Display Port Hub连接) |
视频编码引擎(H.264, MPEG-4, MPEG-2, ASP, VC-1, 蓝光3D) |
支持 |
GPU时钟频率 |
最高1000 MHz |
显存带宽 |
最高288GB/s |
显存容量 |
最大3GB GDDR5 |
流处理器 |
最多2048个(32个计算单元) |
电源连接线要求 |
1 x 6 pin + 1x 8 pin |
GPU交火支持 |
最多支持4卡交火 |
规格 |
全高,双PCI插槽 |
以上参数来源于:http://www.amd.com/en-us/products/graphics/desktop/r9
此外,我最关心的是她的浮点数运算能力,理论上:
single precision float point performance: 4096 GFLOPS
double precision float point performance: 1024 GFLOPS
以下是与不同显卡的比较:
以下是不同显卡理论上的浮点数计算能力:
GPU | FP32 GFLOPS | FP64 GFLOPS | Ratio |
Radeon R9 295X2 | 11264 | 1408 | FP64 = 1/8 FP32 |
Radeon HD 7990 | 7782 | 1946 | FP64 = 1/4 FP32 |
GeForce GTX Titan Black | 5645 | 1881 | FP64 = 1/3 FP32 |
GeForce GTX 690 | 5622 | 234 | FP64 = 1/24 FP32 |
Radeon R9 290X | 5632 | 704 | FP64 = 1/8 FP32 |
GeForce GTX 780 Ti | 5345 | 223 | FP64 = 1/24 FP32 |
Radeon HD 6990 | 5099 | 1276 | FP64 = 1/4 FP32 |
GeForce GTX 980 | 4981 | 156 | FP64 = 1/32 FP32 |
Radeon R9 290 | 4849 | 606 | FP64 = 1/8 FP32 |
GeForce GTX Titan | 4709 | 1523 | FP64 = 1/3 FP32 |
Radeon HD 7970 GHz | 4301 | 1075 | FP64 = 1/4 FP32 |
GeForce GTX 970 | 3920 | 122 | FP64 = 1/32 FP32 |
GeForce GTX 780 | 4156 | 173 | FP64 = 1/24 FP32 |
Radeon R9 280X | 4096 | 1024 | FP64 = 1/4 FP32 |
Radeon R9 280 | 3344 | 836 | FP64 = 1/4 FP32 |
Radeon HD 7950 Boost | 3315 | 828 | FP64 = 1/4 FP32 |
GeForce GTX 770 | 3210 | 134 | FP64 = 1/24 FP32 |
GeForce GTX 680 | 3090 | 129 | FP64 = 1/24 FP32 |
Radeon HD 7950 | 2867 | 717 | FP64 = 1/4 FP32 |
Radeon HD 5870 | 2720 | 544 | FP64 = 1/5 FP32 |
Radeon HD 6970 | 2703 | 675 | FP64 = 1/4 FP32 |
Radeon R9 270X | 2688 | 168 | FP64 = 1/16 FP32 |
Radeon HD 7870 | 2560 | 160 | FP64 = 1/16 FP32 |
GeForce GTX 590 | 2488 | 311 | FP64 = 1/8 FP32 |
GeForce GTX 670 | 2460 | 102 | FP64 = 1/24 FP32 |
GeForce GTX 660 Ti | 2460 | 102 | FP64 = 1/24 FP32 |
Radeon R9 270 | 2368 | 148 | FP64 = 1/16 FP32 |
GeForce GTX 760 | 2258 | 94 | FP64 = 1/24 FP32 |
Radeon HD 6950 | 2253 | 563 | FP64 = 1/4 FP32 |
Radeon HD 5850 | 2088 | 417 | FP64 = 1/5 FP32 |
Radeon R7 260X | 1971 | 123 | FP64 = 1/16 FP32 |
Radeon R7 265 | 1894 | 118 | FP64 = 1/16 FP32 |
GeForce GTX 660 | 1882 | 78 | FP64 = 1/24 FP32 |
Radeon HD 7790 | 1792 | 128 | FP64 = 1/14 FP32 |
Radeon HD 7850 | 1761 | 110 | FP64 = 1/16 FP32 |
GeForce GTX 580 | 1581 | 197 | FP64 = 1/8 FP32 |
Radeon R7 260 | 1536 | 96 | FP64 = 1/16 FP32 |
GeForce GTX 650 Ti Boost | 1505 | 62 | FP64 = 1/24 FP32 |
GeForce GTX 650 Ti | 1425 | 60 | FP64 = 1/24 FP32 |
GeForce GTX 570 | 1405 | 175 | FP64 = 1/8 FP32 |
GeForce GTX 750 Ti | 1388 | 43 | FP64 = 1/32 FP32 |
Radeon HD 7770 GHz | 1280 | 80 | FP64 = 1/16 FP32 |
Radeon R7 250X | 1280 | 80 | FP64 = 1/16 FP32 |
GeForce GTX 750 | 1110 | 34 | FP64 = 1/32 FP32 |
GeForce GTX 650 | 812 | 33 | FP64 = 1/24 FP32 |
Radeon R7 250 | 806 | 50 | FP64 = 1/16 FP32 |
Radeon R7 240 | 500 | 31 | FP64 = 1/16 FP32 |
Workstations cards:
GPU | FP32 GFLOPS | FP64 GFLOPS | Ratio |
FirePro W9100 | 5240 | 2620 | FP64 = 1/2 FP32 |
可以看到Radeon HD7990的单双精度浮点数计算能力都完爆黑泰坦,不过7990是两个7970的双芯卡,不知道会不会影响计算能力,更何况双精度单元需要更多的寄存器,发热量那么高,散热必须要要上一体水冷。
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购买后的软件测试:
500Hz下的浮点数运算能力:
标准1000Hz下的浮点数运算能力: