NVIDIA Tesla K20m vs NVIDIA GRID K520Q
We compared two Professional market GPUs: 5GB VRAM Tesla K20m and 4GB VRAM GRID K520Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20m 's Advantages
More VRAM (5GB vs 4GB)
Larger VRAM bandwidth (208.0GB/s vs 160.0GB/s)
960 additional rendering cores
NVIDIA GRID K520Q 's Advantages
Released 1 years and 6 months late
Score
Benchmark
FP32 (float)
Tesla K20m
+53%
3.524 TFLOPS
GRID K520Q
2.289 TFLOPS
Graphics Card
Jan 2013
Release Date
Jul 2014
Tesla
Generation
GRID
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1300 MHz
Memory Clock
1250 MHz
Memory
5GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
256bit
208.0GB/s
Bandwidth
160.0GB/s
Render Config
-
-
-
-
-
-
2496
Shading Units
1536
208
TMUs
128
40
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
1280 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
23.84 GPixel/s
146.8 GTexel/s
Texture Rate
95.36 GTexel/s
-
-
-
3.524 TFLOPS
FP32 (float)
2.289 TFLOPS
1175 GFLOPS
FP64 (double)
95.36 GFLOPS
Board Design
225W
TDP
225W
550 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
-
Graphics Processor
GK110
GPU Name
GK104
-
-
-
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
7.08 billion
Transistors
3.54 billion
561 mm²
Die Size
294 mm²
Graphics Features
12 (11_0)
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
