AMD Radeon HD 7870 GHz Edition vs NVIDIA Tesla K40m
GPU Specs Compare
Graphics Card
Release Date
Mar 2012
Nov 2013
Generation
Southern Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1200 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
153.6GB/s
288.4GB/s
Render Config
Compute Units
20
-
Shading Units
1280
2880
TMUs
80
240
ROPs
32
48
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
52.56 GPixel/s
Texture Rate
80.00 GTexel/s
210.2 GTexel/s
FP32 (float)
2.560 TFLOPS
5.046 TFLOPS
FP64 (double)
160.0 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Pitcairn
GK110B
GPU Variant
Pitcairn XT(215-0828047)
-
Architecture
GCN 1.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
7.08 billion
Die Size
212 mm²
561 mm²
Board Design
TDP
175W
245W
Suggested PSU
450 W
550 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
-
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.1
Shader Model
5.1
5.1
CUDA
-
3.5