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GPU Comparison
NVIDIA Tesla K40s vs NVIDIA Quadro K420
NVIDIA Tesla K40s vs NVIDIA Quadro K420
VS
NVIDIA Tesla K40s
NVIDIA Quadro K420
We compared two Professional market GPUs: 12GB VRAM Tesla K40s and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K40s 's Advantages
Boost Clock876MHz
More VRAM (12GB vs 1GB)
Larger VRAM bandwidth (288.4GB/s vs 28.51GB/s)
2688 additional rendering cores
NVIDIA Quadro K420 's Advantages
Released 8 months late
Lower TDP (41W vs 245W)
Score
Benchmark
FP32 (float)
Tesla K40s
+1401%
5.046 TFLOPS
Quadro K420
0.336 TFLOPS
Tesla K40s
VS
Quadro K420
Graphics Card
Nov 2013
Release Date
Jul 2014
Tesla
Generation
Quadro
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
745 MHz
Base Clock
-
876 MHz
Boost Clock
-
1502 MHz
Memory Clock
891 MHz
Memory
12GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
128bit
288.4GB/s
Bandwidth
28.51GB/s
Render Config
-
SM Count
-
-
Compute Units
-
2880
Shading Units
192
240
TMUs
16
48
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
1536 KB
L2 Cache
256 KB
Theoretical Performance
52.56 GPixel/s
Pixel Rate
3.504 GPixel/s
210.2 GTexel/s
Texture Rate
14.02 GTexel/s
-
FP16 (half)
-
5.046 TFLOPS
FP32 (float)
336.4 GFLOPS
1.682 TFLOPS
FP64 (double)
14.02 GFLOPS
Graphics Processor
GK110B
GPU Name
GK107
-
GPU Variant
GK107-301-A2
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
7.08 billion
Transistors
1.27 billion
561 mm²
Die Size
118 mm²
Board Design
245W
TDP
41W
550 W
Suggested PSU
200 W
No outputs
Outputs
1x DVI 1x DisplayPort 1.2
-
Power Connectors
None
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.1
3.5
CUDA
3.0
5.1
Shader Model
5.1
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