AMD Radeon Pro Vega 20 vs NVIDIA RTX PRO 4500 Blackwell
GPU Specs Compare
Graphics Card
Release Date
Nov 2018
Mar 2025
Generation
Radeon Pro Mac
Blackwell PRO W
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
815 MHz
1635 MHz
Boost Clock
1283 MHz
2407 MHz
Memory Clock
740 MHz
1750 MHz
Memory
Memory Size
4GB
32GB
Memory Type
HBM2
GDDR7
Memory Bus
1024bit
256bit
Bandwidth
189.4GB/s
896.0GB/s
Render Config
Compute Units
20
-
Shading Units
1280
10496
TMUs
80
328
ROPs
32
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
1024 KB
64 MB
SM Count
-
82
Tensor Cores
-
328
RT Cores
-
82
Theoretical Performance
Pixel Rate
41.06 GPixel/s
269.6 GPixel/s
Texture Rate
102.6 GTexel/s
789.5 GTexel/s
FP16 (half)
6.569 TFLOPS
50.53 TFLOPS
FP32 (float)
3.284 TFLOPS
50.53 TFLOPS
FP64 (double)
205.3 GFLOPS
789.5 GFLOPS
Graphics Processor
GPU Name
Vega 12
GB203
GPU Variant
Vega 12 XTA
-
Architecture
GCN 5.0
Blackwell 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
Unknown
45.6 billion
Die Size
Unknown
378 mm²
Board Design
TDP
100W
200W
Outputs
No outputs
4x DisplayPort 2.1b
Suggested PSU
-
550 W
Power Connectors
-
1x 16-pin
Graphics Features
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.4
Shader Model
6.3
6.8
CUDA
-
12.0
📊 Benchmark
3DMark Time Spy
2,596
-
3DMark Time Spy Extreme
1,211
-