NVIDIA Tesla K20X vs NVIDIA RTX A5000-12Q
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Apr 2021
Generation
Tesla
Quadro Ampere
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1300 MHz
2000 MHz
Base Clock
—
1170 MHz
Boost Clock
—
1695 MHz
Memory
Memory Size
6GB
12GB
Memory Type
GDDR5
GDDR6
Memory Bus
384bit
384bit
Bandwidth
249.6GB/s
768.0GB/s
Render Config
Shading Units
2688
8192
TMUs
224
256
ROPs
48
96
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
1536 KB
6 MB
SM Count
—
64
Tensor Cores
—
256
RT Cores
—
64
Theoretical Performance
Pixel Rate
40.99 GPixel/s
162.7 GPixel/s
Texture Rate
164.0 GTexel/s
433.9 GTexel/s
FP32 (float)
3.935 TFLOPS
27.77 TFLOPS
FP64 (double)
1312 GFLOPS
433.9 GFLOPS
FP16 (half)
—
27.77 TFLOPS
Graphics Processor
GPU Name
GK110
GA102
Architecture
Kepler
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
7.08 billion
28.3 billion
Die Size
561 mm²
628 mm²
Board Design
TDP
235W
230W
Suggested PSU
550 W
550 W
Outputs
No outputs
4x DisplayPort 1.4a
Power Connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.5
8.6
Shader Model
5.1
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.