NVIDIA Tesla P4 vs NVIDIA Tesla K20c
GPU · Specs Compare
Graphics Card
Release Date
Sep 2016
Nov 2012
Generation
Tesla
Tesla
Type
Professional
Professional
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
886 MHz
—
Boost Clock
1114 MHz
—
Memory Clock
1502 MHz
1300 MHz
Memory
Memory Size
8GB
5GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
320bit
Bandwidth
192.3GB/s
208.0GB/s
Render Config
SM Count
20
—
Shading Units
2560
2496
TMUs
160
208
ROPs
64
40
L1 Cache
48 KB (per SM)
16 KB (per SMX)
L2 Cache
2 MB
1280 KB
Theoretical Performance
Pixel Rate
71.30 GPixel/s
36.71 GPixel/s
Texture Rate
178.2 GTexel/s
146.8 GTexel/s
FP16 (half)
89.12 GFLOPS
—
FP32 (float)
5.704 TFLOPS
3.524 TFLOPS
FP64 (double)
178.2 GFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
GP104
GK110
GPU Variant
GP104-895-A1
GK110-885-KA-A1
Architecture
Pascal
Kepler
Foundry
TSMC
TSMC
Process Size
16 nm
28 nm
Transistors
7.2 billion
7.08 billion
Die Size
314 mm²
561 mm²
Board Design
TDP
75W
225W
Suggested PSU
250 W
550 W
Outputs
No outputs
No outputs
Power Connectors
None
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
6.1
3.5
Shader Model
6.4
5.1
Benchmark
OctaneBench
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55
▲ Specs Compare
Data sourced from official specifications and benchmark tests.