Home GPU Comparison NVIDIA Tesla T40 24 GB vs NVIDIA Tesla K20Xm

NVIDIA Tesla T40 24 GB vs NVIDIA Tesla K20Xm

We compared two Professional market GPUs: 24GB VRAM Tesla T40 24 GB and 6GB VRAM Tesla K20Xm to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla T40 24 GB 's Advantages
Boost Clock1560MHz
More VRAM (24GB vs 6GB)
Larger VRAM bandwidth (624.0GB/s vs 249.6GB/s)
1920 additional rendering cores
NVIDIA Tesla K20Xm 's Advantages
Lower TDP (235W vs 260W)

Score

Benchmark

FP32 (float)
Tesla T40 24 GB +265%
14.38 TFLOPS
Tesla K20Xm
3.935 TFLOPS
VS

Graphics Card

Unknown
Release Date
Nov 2012
Tesla Turing
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1305 MHz
Base Clock
-
1560 MHz
Boost Clock
-
1625 MHz
Memory Clock
1300 MHz

Memory

24GB
Memory Size
6GB
GDDR6
Memory Type
GDDR5
384bit
Memory Bus
384bit
624.0GB/s
Bandwidth
249.6GB/s

Render Config

-
-
-
72
SM Count
-
4608
Shading Units
2688
288
TMUs
224
96
ROPs
48
576
Tensor Cores
-
72
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
6 MB
L2 Cache
1536 KB
-
-
-

Theoretical Performance

149.8 GPixel/s
Pixel Rate
40.99 GPixel/s
449.3 GTexel/s
Texture Rate
164.0 GTexel/s
28.75 TFLOPS
FP16 (half)
-
14.38 TFLOPS
FP32 (float)
3.935 TFLOPS
449.3 GFLOPS
FP64 (double)
1312 GFLOPS

Board Design

260W
TDP
235W
600 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
-

Graphics Processor

TU102
GPU Name
GK110
-
-
-
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
18.6 billion
Transistors
7.08 billion
754 mm²
Die Size
561 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.5
6.7
Shader Model
5.1

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