NVIDIA Tesla S1070 vs NVIDIA Tesla K20c
We compared two Professional market GPUs: 4GB VRAM Tesla S1070 and 5GB VRAM Tesla K20c to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20c 's Advantages
Released 4 years and 5 months late
More VRAM (5GB vs 4GB)
Larger VRAM bandwidth (208.0GB/s vs 102.4GB/s)
2256 additional rendering cores
Lower TDP (225W vs 800W)
Score
Benchmark
FP32 (float)
Tesla S1070
0.622 TFLOPS
Tesla K20c
+466%
3.524 TFLOPS
Graphics Card
Jun 2008
Release Date
Nov 2012
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
800 MHz
Memory Clock
1300 MHz
Memory
4GB
Memory Size
5GB
GDDR3
Memory Type
GDDR5
512bit
Memory Bus
320bit
102.4GB/s
Bandwidth
208.0GB/s
Render Config
-
-
-
30
SM Count
-
240
Shading Units
2496
80
TMUs
208
32
ROPs
40
-
-
-
-
-
-
-
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
1280 KB
-
-
-
Theoretical Performance
19.52 GPixel/s
Pixel Rate
36.71 GPixel/s
48.80 GTexel/s
Texture Rate
146.8 GTexel/s
-
-
-
622.1 GFLOPS
FP32 (float)
3.524 TFLOPS
77.76 GFLOPS
FP64 (double)
1175 GFLOPS
Board Design
800W
TDP
225W
1200 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
-
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GT200B
GPU Name
GK110
-
GPU Variant
GK110-885-KA-A1
Tesla 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
1.4 billion
Transistors
7.08 billion
470 mm²
Die Size
561 mm²
Graphics Features
11.1 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
1.3
CUDA
3.5
4.0
Shader Model
5.1
