NVIDIA Tesla P4 vs NVIDIA Tesla K20c
We compared two Professional market GPUs: 8GB VRAM Tesla P4 and 5GB VRAM Tesla K20c to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla P4 's Advantages
Released 3 years and 10 months late
Boost Clock1114MHz
More VRAM (8GB vs 5GB)
64 additional rendering cores
Lower TDP (75W vs 225W)
NVIDIA Tesla K20c 's Advantages
Larger VRAM bandwidth (208.0GB/s vs 192.3GB/s)
Score
Benchmark
FP32 (float)
Tesla P4
+61%
5.704 TFLOPS
Tesla K20c
3.524 TFLOPS
OctaneBench
Tesla P4
+54%
85
Tesla K20c
55
Graphics Card
Sep 2016
Release Date
Nov 2012
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
886 MHz
Base Clock
-
1114 MHz
Boost Clock
-
1502 MHz
Memory Clock
1300 MHz
Memory
8GB
Memory Size
5GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
320bit
192.3GB/s
Bandwidth
208.0GB/s
Render Config
-
-
-
20
SM Count
-
2560
Shading Units
2496
160
TMUs
208
64
ROPs
40
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
1280 KB
-
-
-
Theoretical Performance
71.30 GPixel/s
Pixel Rate
36.71 GPixel/s
178.2 GTexel/s
Texture Rate
146.8 GTexel/s
89.12 GFLOPS
FP16 (half)
-
5.704 TFLOPS
FP32 (float)
3.524 TFLOPS
178.2 GFLOPS
FP64 (double)
1175 GFLOPS
Board Design
75W
TDP
225W
250 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
None
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GP104
GPU Name
GK110
GP104-895-A1
GPU Variant
GK110-885-KA-A1
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
7.2 billion
Transistors
7.08 billion
314 mm²
Die Size
561 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
6.1
CUDA
3.5
6.4
Shader Model
5.1
