NVIDIA Tesla K20c vs NVIDIA Tesla P6
We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 16GB VRAM Tesla P6 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20c 's Advantages
Larger VRAM bandwidth (208.0GB/s vs 192.3GB/s)
448 additional rendering cores
NVIDIA Tesla P6 's Advantages
Released 4 years and 4 months late
Boost Clock1506MHz
More VRAM (16GB vs 5GB)
Lower TDP (90W vs 225W)
Score
Benchmark
FP32 (float)
Tesla K20c
3.524 TFLOPS
Tesla P6
+75%
6.169 TFLOPS
OctaneBench
Tesla K20c
55
Tesla P6
+72%
95
Graphics Card
Nov 2012
Release Date
Mar 2017
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
MXM-B (3.0)
Clock Speeds
-
Base Clock
1012 MHz
-
Boost Clock
1506 MHz
1300 MHz
Memory Clock
1502 MHz
Memory
5GB
Memory Size
16GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
256bit
208.0GB/s
Bandwidth
192.3GB/s
Render Config
-
-
-
-
SM Count
16
2496
Shading Units
2048
208
TMUs
128
40
ROPs
64
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
48 KB (per SM)
1280 KB
L2 Cache
2 MB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
96.38 GPixel/s
146.8 GTexel/s
Texture Rate
192.8 GTexel/s
-
FP16 (half)
96.38 GFLOPS
3.524 TFLOPS
FP32 (float)
6.169 TFLOPS
1175 GFLOPS
FP64 (double)
192.8 GFLOPS
Board Design
225W
TDP
90W
550 W
Suggested PSU
250 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
GK110
GPU Name
GP104
GK110-885-KA-A1
GPU Variant
GP104-995-A1
Kepler
Architecture
Pascal
TSMC
Foundry
TSMC
28 nm
Process Size
16 nm
7.08 billion
Transistors
7.2 billion
561 mm²
Die Size
314 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.5
CUDA
6.1
5.1
Shader Model
6.4
