NVIDIA Tesla K20X vs NVIDIA RTX 4000 SFF Ada Generation
We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 16GB VRAM RTX 4000 SFF Ada Generation to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20X 's Advantages
Lower TDP (235W vs 300W)
NVIDIA RTX 4000 SFF Ada Generation 's Advantages
Released 6 years late
Boost Clock1746MHz
More VRAM (16GB vs 6GB)
Larger VRAM bandwidth (1.02TB/s vs 249.6GB/s)
1152 additional rendering cores
Score
Benchmark
FP32 (float)
Tesla K20X
3.935 TFLOPS
RTX 4000 SFF Ada Generation
+240%
13.41 TFLOPS
Graphics Card
Nov 2012
Release Date
Nov 2018
Tesla
Generation
Radeon Instinct
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1200 MHz
-
Boost Clock
1746 MHz
1300 MHz
Memory Clock
1000 MHz
Memory
6GB
Memory Size
16GB
GDDR5
Memory Type
HBM2
384bit
Memory Bus
4096bit
249.6GB/s
Bandwidth
1.02TB/s
Render Config
-
Compute Units
60
-
SM Count
48
2688
Shading Units
3840
224
TMUs
240
48
ROPs
64
-
Tensor Cores
192
-
RT Cores
48
16 KB (per SMX)
L1 Cache
16 KB (per CU)
1536 KB
L2 Cache
4 MB
-
-
-
Theoretical Performance
40.99 GPixel/s
Pixel Rate
111.7 GPixel/s
164.0 GTexel/s
Texture Rate
419.0 GTexel/s
-
FP16 (half)
26.82 TFLOPS
3.935 TFLOPS
FP32 (float)
13.41 TFLOPS
1312 GFLOPS
FP64 (double)
6.705 TFLOPS
Board Design
235W
TDP
300W
550 W
Suggested PSU
700 W
No outputs
Outputs
1x mini-DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
GK110
GPU Name
Vega 20
-
GPU Variant
Vega 20 GLXT
Kepler
Architecture
GCN 5.1
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
7.08 billion
Transistors
13.23 billion
561 mm²
Die Size
331 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.1
Vulkan
1.3
3.5
CUDA
8.9
5.1
Shader Model
6.7
