AMD Radeon Pro Vega 20 vs NVIDIA RTX 4000 SFF Ada Generation
GPU · Specs Compare
Graphics Card
Release Date
Nov 2018
Nov 2018
Generation
Radeon Pro Mac
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
815 MHz
1200 MHz
Boost Clock
1283 MHz
1746 MHz
Memory Clock
740 MHz
1000 MHz
Memory
Memory Size
4GB
16GB
Memory Type
HBM2
HBM2
Memory Bus
1024bit
4096bit
Bandwidth
189.4GB/s
1.02TB/s
Render Config
Compute Units
20
60
Shading Units
1280
3840
TMUs
80
240
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
4 MB
SM Count
—
48
Tensor Cores
—
192
RT Cores
—
48
Theoretical Performance
Pixel Rate
41.06 GPixel/s
111.7 GPixel/s
Texture Rate
102.6 GTexel/s
419.0 GTexel/s
FP16 (half)
6.569 TFLOPS
26.82 TFLOPS
FP32 (float)
3.284 TFLOPS
13.41 TFLOPS
FP64 (double)
205.3 GFLOPS
6.705 TFLOPS
Graphics Processor
GPU Name
Vega 12
Vega 20
GPU Variant
Vega 12 XTA
Vega 20 GLXT
Architecture
GCN 5.0
GCN 5.1
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
7 nm
Transistors
Unknown
13.23 billion
Die Size
Unknown
331 mm²
Board Design
TDP
100W
300W
Outputs
No outputs
1x mini-DisplayPort 1.4a
Suggested PSU
—
700 W
Power Connectors
—
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.7
CUDA
—
8.9
Benchmark
3DMark Time Spy
2,596
—
3DMark Time Spy Extreme
1,211
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.