NVIDIA Tesla K20c vs NVIDIA Quadro NVS 420
We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 256MB VRAM Quadro NVS 420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20c 's Advantages
Released 3 years and 10 months late
More VRAM (5GB vs 256GB)
Larger VRAM bandwidth (208.0GB/s vs 11.20GB/s)
2488 additional rendering cores
NVIDIA Quadro NVS 420 's Advantages
Lower TDP (40W vs 225W)
Score
Benchmark
FP32 (float)
Tesla K20c
+15918%
3.524 TFLOPS
Quadro NVS 420
0.022 TFLOPS
Graphics Card
Nov 2012
Release Date
Jan 2009
Tesla
Generation
Quadro NVS
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1300 MHz
Memory Clock
700 MHz
Memory
5GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
320bit
Memory Bus
64bit
208.0GB/s
Bandwidth
11.20GB/s
Render Config
-
-
-
-
SM Count
1
2496
Shading Units
8
208
TMUs
4
40
ROPs
4
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
-
1280 KB
L2 Cache
16 KB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
2.200 GPixel/s
146.8 GTexel/s
Texture Rate
2.200 GTexel/s
-
-
-
3.524 TFLOPS
FP32 (float)
22.40 GFLOPS
1175 GFLOPS
FP64 (double)
-
Board Design
225W
TDP
40W
550 W
Suggested PSU
200 W
No outputs
Outputs
1x VHDCI
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
GK110
GPU Name
G98
GK110-885-KA-A1
GPU Variant
-
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
7.08 billion
Transistors
0.21 billion
561 mm²
Die Size
86 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
1.1
5.1
Shader Model
4.0
