NVIDIA RTX A4000H vs NVIDIA Tesla K20X
GPU · Specs Compare
Graphics Card
Release Date
Apr 2021
Nov 2012
Generation
Quadro Ampere
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
735 MHz
—
Boost Clock
1560 MHz
—
Memory Clock
1750 MHz
1300 MHz
Memory
Memory Size
16GB
6GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
384bit
Bandwidth
448.0GB/s
249.6GB/s
Render Config
SM Count
48
—
Shading Units
6144
2688
TMUs
192
224
ROPs
96
48
Tensor Cores
192
—
RT Cores
48
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
4 MB
1536 KB
Theoretical Performance
Pixel Rate
149.8 GPixel/s
40.99 GPixel/s
Texture Rate
299.5 GTexel/s
164.0 GTexel/s
FP16 (half)
19.17 TFLOPS
—
FP32 (float)
19.17 TFLOPS
3.935 TFLOPS
FP64 (double)
299.5 GFLOPS
1312 GFLOPS
Graphics Processor
GPU Name
GA104
GK110
GPU Variant
GA104-???-A1
—
Architecture
Ampere
Kepler
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
17.4 billion
7.08 billion
Die Size
392 mm²
561 mm²
Board Design
TDP
140W
235W
Suggested PSU
300 W
550 W
Outputs
4x DisplayPort 1.4a
No outputs
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
8.6
3.5
Shader Model
6.7
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.