NVIDIA Tesla K20c vs NVIDIA Tesla X2070
We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 6GB VRAM Tesla X2070 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20c 's Advantages
Released 1 years and 4 months late
Larger VRAM bandwidth (208.0GB/s vs 177.4GB/s)
2048 additional rendering cores
NVIDIA Tesla X2070 's Advantages
More VRAM (6GB vs 5GB)
Score
Benchmark
FP32 (float)
Tesla K20c
+202%
3.524 TFLOPS
Tesla X2070
1.166 TFLOPS
Graphics Card
Nov 2012
Release Date
Jul 2011
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
MXM-B (3.0)
Clock Speeds
-
-
-
-
-
-
1300 MHz
Memory Clock
924 MHz
Memory
5GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
384bit
208.0GB/s
Bandwidth
177.4GB/s
Render Config
-
-
-
-
SM Count
14
2496
Shading Units
448
208
TMUs
56
40
ROPs
48
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
1280 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
18.23 GPixel/s
146.8 GTexel/s
Texture Rate
36.46 GTexel/s
-
-
-
3.524 TFLOPS
FP32 (float)
1166 GFLOPS
1175 GFLOPS
FP64 (double)
582.8 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
GF100
GK110-885-KA-A1
GPU Variant
GF100-876-A3
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
7.08 billion
Transistors
3.1 billion
561 mm²
Die Size
529 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
2.0
5.1
Shader Model
5.1
