NVIDIA RTX A4000 vs AMD Radeon Pro V420
GPU · Specs Compare
Graphics Card
Release Date
Apr 2021
Unknown
Generation
Quadro Ampere
Radeon Pro Vega
Type
Professional
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
735 MHz
800 MHz
Boost Clock
1560 MHz
1700 MHz
Memory Clock
1750 MHz
800 MHz
Memory
Memory Size
16GB
32GB
Memory Type
GDDR6
HBM2
Memory Bus
256bit
4096bit
Bandwidth
448.0GB/s
819.2GB/s
Render Config
SM Count
48
—
Shading Units
6144
4096
TMUs
192
256
ROPs
96
64
Tensor Cores
192
—
RT Cores
48
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
4 MB
4 MB
Compute Units
—
64
Theoretical Performance
Pixel Rate
149.8 GPixel/s
108.8 GPixel/s
Texture Rate
299.5 GTexel/s
435.2 GTexel/s
FP16 (half)
19.17 TFLOPS
27.85 TFLOPS
FP32 (float)
19.17 TFLOPS
13.93 TFLOPS
FP64 (double)
299.5 GFLOPS
6.963 TFLOPS
Graphics Processor
GPU Name
GA104
Vega 20
GPU Variant
GA104-875-A1
Vega 20 GLXT WS(215-0914026)
Architecture
Ampere
GCN 5.1
Foundry
Samsung
TSMC
Process Size
8 nm
7 nm
Transistors
17.4 billion
13.23 billion
Die Size
392 mm²
331 mm²
Board Design
TDP
140W
300W
Suggested PSU
300 W
700 W
Outputs
4x DisplayPort 1.4a
6x mini-DisplayPort 1.4a
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.3
1.3
CUDA
8.6
—
Shader Model
6.7
6.7
Benchmark
3DMark Time Spy
11,079
—
3DMark Time Spy Extreme
5,367
—
OctaneBench
352
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.