AMD Radeon HD 8970M vs NVIDIA Tesla K40d
GPU Specs Compare
Graphics Card
Release Date
May 2013
Nov 2013
Generation
Solar System
Tesla Kepler
Type
Mobile
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
745 MHz
Boost Clock
900 MHz
876 MHz
Memory Clock
1200 MHz
1502 MHz
Memory
Memory Size
4GB
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
28.80 GPixel/s
52.56 GPixel/s
Texture Rate
72.00 GTexel/s
210.2 GTexel/s
FP32 (float)
2.304 TFLOPS
5.046 TFLOPS
FP64 (double)
144.0 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
Neptune
GK110B
GPU Variant
Neptune XT(216-0847000)
-
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
100W
245W
Outputs
No outputs
No outputs
Suggested PSU
-
550 W
Graphics Features
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.2.175
Shader Model
5.1
6.5 (5.1)
CUDA
-
3.5