Tesla K20s vs Tesla P4
We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 8GB VRAM Tesla P4 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Tesla K20s 's Advantages
Larger VRAM bandwidth (208.0GB/s vs 192.3GB/s)
Tesla P4 's Advantages
Released 3 years and 7 months late
Boost Clock1114MHz
More VRAM (8GB vs 5GB)
64 additional rendering cores
Lower TDP (75W vs 225W)
Score
Benchmark
FP32 (float)
Tesla K20s
2870
Tesla P4
+98%
5704
Graphics Card
Feb 2013
Release Date
Sep 2016
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
886 MHz
-
Boost Clock
1114 MHz
1300 MHz
Memory Clock
1502 MHz
Memory
5GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
256bit
208.0GB/s
Bandwidth
192.3GB/s
Render Config
-
SM Count
20
2496
Shading Units
2560
208
TMUs
160
40
ROPs
64
16 KB (per SMX)
L1 Cache
48 KB (per SM)
1280 KB
L2 Cache
2 MB
Theoretical Performance
29.90 GPixel/s
Pixel Rate
71.30 GPixel/s
119.6 GTexel/s
Texture Rate
178.2 GTexel/s
-
FP16 (half)
89.12 GFLOPS
2.870 TFLOPS
FP32 (float)
5.704 TFLOPS
956.8 GFLOPS
FP64 (double)
178.2 GFLOPS
Board Design
225W
TDP
75W
550 W
Suggested PSU
250 W
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GK110
GPU Name
GP104
-
GPU Variant
GP104-895-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
