ATI FirePro V7900 SDI vs NVIDIA Tesla K20X
GPU Specs Compare
Graphics Card
Release Date
May 2011
Nov 2012
Generation
FirePro
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
1300 MHz
Memory
Memory Size
2GB
6GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
160.0GB/s
249.6GB/s
Render Config
Compute Units
20
-
Shading Units
1280
2688
TMUs
80
224
ROPs
32
48
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
23.20 GPixel/s
40.99 GPixel/s
Texture Rate
58.00 GTexel/s
164.0 GTexel/s
FP32 (float)
1.856 TFLOPS
3.935 TFLOPS
FP64 (double)
464.0 GFLOPS
1312 GFLOPS
Graphics Processor
GPU Name
Cayman
GK110
GPU Variant
Cayman PRO GL
-
Architecture
TeraScale 3
Kepler
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
7.08 billion
Die Size
389 mm²
561 mm²
Board Design
TDP
150W
235W
Suggested PSU
450 W
550 W
Outputs
4x SDI
No outputs
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.1
Shader Model
5.0
5.1
CUDA
-
3.5