NVIDIA Tesla K20X vs NVIDIA GRID M40
We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 8GB VRAM GRID M40 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20X 's Advantages
Larger VRAM bandwidth (249.6GB/s vs 83.20GB/s)
2304 additional rendering cores
NVIDIA GRID M40 's Advantages
Released 3 years and 6 months late
More VRAM (8GB vs 6GB)
Lower TDP (50W vs 235W)
Score
Benchmark
FP32 (float)
Tesla K20X
+396%
3.935 TFLOPS
GRID M40
0.793 TFLOPS
Graphics Card
Nov 2012
Release Date
May 2016
Tesla
Generation
GRID
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1300 MHz
Memory Clock
1300 MHz
Memory
6GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
249.6GB/s
Bandwidth
83.20GB/s
Render Config
-
-
-
-
-
-
2688
Shading Units
384
224
TMUs
32
48
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
1536 KB
L2 Cache
2 MB
-
-
-
Theoretical Performance
40.99 GPixel/s
Pixel Rate
16.53 GPixel/s
164.0 GTexel/s
Texture Rate
33.06 GTexel/s
-
-
-
3.935 TFLOPS
FP32 (float)
793.3 GFLOPS
1312 GFLOPS
FP64 (double)
24.79 GFLOPS
Board Design
235W
TDP
50W
550 W
Suggested PSU
250 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
-
Graphics Processor
GK110
GPU Name
GM107
-
-
-
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
7.08 billion
Transistors
1.87 billion
561 mm²
Die Size
148 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.5
CUDA
5.0
5.1
Shader Model
5.1
