NVIDIA GRID K2 vs NVIDIA Tesla K20X
We compared two Professional market GPUs: 4GB VRAM GRID K2 and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GRID K2 's Advantages
Released 6 months late
Lower TDP (225W vs 235W)
NVIDIA Tesla K20X 's Advantages
More VRAM (6GB vs 4GB)
Larger VRAM bandwidth (249.6GB/s vs 160.0GB/s)
1152 additional rendering cores
Score
Benchmark
FP32 (float)
GRID K2
2.289 TFLOPS
Tesla K20X
+71%
3.935 TFLOPS
Graphics Card
May 2013
Release Date
Nov 2012
GRID
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
1300 MHz
Memory
4GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
160.0GB/s
Bandwidth
249.6GB/s
Render Config
-
-
-
-
-
-
1536
Shading Units
2688
128
TMUs
224
32
ROPs
48
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
1536 KB
-
-
-
Theoretical Performance
23.84 GPixel/s
Pixel Rate
40.99 GPixel/s
95.36 GTexel/s
Texture Rate
164.0 GTexel/s
-
-
-
2.289 TFLOPS
FP32 (float)
3.935 TFLOPS
95.36 GFLOPS
FP64 (double)
1312 GFLOPS
Board Design
225W
TDP
235W
550 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GK104
GPU Name
GK110
GK104-895-A2
GPU Variant
-
Kepler
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
7.08 billion
294 mm²
Die Size
561 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.2.175
Vulkan
1.1
3.0
CUDA
3.5
6.5 (5.1)
Shader Model
5.1
