NVIDIA Tesla K20c vs NVIDIA Tesla T4
We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 16GB VRAM Tesla T4 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla T4 's Advantages
Released 5 years and 10 months late
Boost Clock1590MHz
More VRAM (16GB vs 5GB)
Larger VRAM bandwidth (320.0GB/s vs 208.0GB/s)
64 additional rendering cores
Lower TDP (70W vs 225W)
Score
Benchmark
FP32 (float)
Tesla K20c
3.524 TFLOPS
Tesla T4
+131%
8.141 TFLOPS
OctaneBench
Tesla K20c
55
Tesla T4
+181%
155
Graphics Card
Nov 2012
Release Date
Sep 2018
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
585 MHz
-
Boost Clock
1590 MHz
1300 MHz
Memory Clock
1250 MHz
Memory
5GB
Memory Size
16GB
GDDR5
Memory Type
GDDR6
320bit
Memory Bus
256bit
208.0GB/s
Bandwidth
320.0GB/s
Render Config
-
-
-
-
SM Count
40
2496
Shading Units
2560
208
TMUs
160
40
ROPs
64
-
Tensor Cores
320
-
RT Cores
40
16 KB (per SMX)
L1 Cache
64 KB (per SM)
1280 KB
L2 Cache
4 MB
-
-
-
Theoretical Performance
36.71 GPixel/s
Pixel Rate
101.8 GPixel/s
146.8 GTexel/s
Texture Rate
254.4 GTexel/s
-
FP16 (half)
65.13 TFLOPS
3.524 TFLOPS
FP32 (float)
8.141 TFLOPS
1175 GFLOPS
FP64 (double)
254.4 GFLOPS
Board Design
225W
TDP
70W
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
TU104
GK110-885-KA-A1
GPU Variant
TU104-895-A1
Kepler
Architecture
Turing
TSMC
Foundry
TSMC
28 nm
Process Size
12 nm
7.08 billion
Transistors
13.6 billion
561 mm²
Die Size
545 mm²
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.5
CUDA
7.5
5.1
Shader Model
6.6
