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GPU Comparison
NVIDIA Tesla M40 vs NVIDIA Tesla K20X
NVIDIA Tesla M40 vs NVIDIA Tesla K20X
VS
NVIDIA Tesla M40
NVIDIA Tesla K20X
We compared two Professional market GPUs: 12GB VRAM Tesla M40 and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla M40 's Advantages
Released 3 years late
Boost Clock1112MHz
More VRAM (12GB vs 6GB)
Larger VRAM bandwidth (288.4GB/s vs 249.6GB/s)
384 additional rendering cores
NVIDIA Tesla K20X 's Advantages
Lower TDP (235W vs 250W)
Score
Benchmark
FP32 (float)
Tesla M40
+73%
6.832 TFLOPS
Tesla K20X
3.935 TFLOPS
Tesla M40
VS
Tesla K20X
Graphics Card
Nov 2015
Release Date
Nov 2012
Tesla Maxwell
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
948 MHz
Base Clock
-
1112 MHz
Boost Clock
-
1502 MHz
Memory Clock
1300 MHz
Memory
12GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
288.4GB/s
Bandwidth
249.6GB/s
Render Config
-
-
-
-
-
-
3072
Shading Units
2688
192
TMUs
224
96
ROPs
48
-
-
-
-
-
-
48 KB (per SMM)
L1 Cache
16 KB (per SMX)
3 MB
L2 Cache
1536 KB
-
-
-
Theoretical Performance
106.8 GPixel/s
Pixel Rate
40.99 GPixel/s
213.5 GTexel/s
Texture Rate
164.0 GTexel/s
-
-
-
6.832 TFLOPS
FP32 (float)
3.935 TFLOPS
213.5 GFLOPS
FP64 (double)
1312 GFLOPS
Board Design
250W
TDP
235W
600 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
8-pin EPS
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GM200
GPU Name
GK110
GM200-895-A1
GPU Variant
-
Maxwell 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
8 billion
Transistors
7.08 billion
601 mm²
Die Size
561 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.2
CUDA
3.5
6.7
Shader Model
5.1
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