AMD Radeon HD 6970 vs NVIDIA Tesla K40m
GPU Specs Compare
Graphics Card
Release Date
Dec 2010
Nov 2013
Generation
Northern Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1502 MHz
Base Clock
-
745 MHz
Boost Clock
-
876 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
176.0GB/s
288.4GB/s
Render Config
Compute Units
24
-
Shading Units
1536
2880
TMUs
96
240
ROPs
32
48
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
28.16 GPixel/s
52.56 GPixel/s
Texture Rate
84.48 GTexel/s
210.2 GTexel/s
FP32 (float)
2.703 TFLOPS
5.046 TFLOPS
FP64 (double)
675.8 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Cayman
GK110B
GPU Variant
Cayman XT(215-0807007)
-
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
250W
245W
Suggested PSU
600 W
550 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
-
Graphics Features
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.1
Shader Model
5.0
5.1
CUDA
-
3.5