Radeon Pro Vega 20 vs GeForce RTX 4080 Mobile
We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 12GB VRAM GeForce RTX 4080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon Pro Vega 20 Advantages
Lower TDP (100W vs 110W)
GeForce RTX 4080 Mobile Advantages
Released 4 years and 2 months late
Boost Clock has increased by 30% (1665MHz vs 1283MHz)
More VRAM (12GB vs 4GB)
Larger VRAM bandwidth (432.0GB/s vs 189.4GB/s)
6144 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Pro Vega 20
3284
GeForce RTX 4080 Mobile
+652%
24720
3DMark Time Spy
Radeon Pro Vega 20
2596
GeForce RTX 4080 Mobile
+627%
18875
3DMark Time Spy Extreme
Radeon Pro Vega 20
1211
GeForce RTX 4080 Mobile
+647%
9051
Graphics Card
Nov 2018
Release Date
Jan 2023
Radeon Pro Mac
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
815 MHz
Base Clock
1290 MHz
1283 MHz
Boost Clock
1665 MHz
740 MHz
Memory Clock
2250 MHz
Memory
4GB
Memory Size
12GB
HBM2
Memory Type
GDDR6
1024bit
Memory Bus
192bit
189.4GB/s
Bandwidth
432.0GB/s
Render Config
20
Compute Units
-
-
SM Count
58
1280
Shading Units
7424
80
TMUs
232
32
ROPs
80
-
Tensor Cores
232
-
RT Cores
58
16 KB (per CU)
L1 Cache
128 KB (per SM)
1024 KB
L2 Cache
48 MB
Theoretical Performance
41.06 GPixel/s
Pixel Rate
133.2 GPixel/s
102.6 GTexel/s
Texture Rate
386.3 GTexel/s
6.569 TFLOPS
FP16 (half)
24.72 TFLOPS
3.284 TFLOPS
FP32 (float)
24.72 TFLOPS
205.3 GFLOPS
FP64 (double)
386.3 GFLOPS
Board Design
100W
TDP
110W
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
None
Graphics Processor
Vega 12
GPU Name
AD104
Vega 12 XTA
GPU Variant
GN21-X9
GCN 5.0
Architecture
Ada Lovelace
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
4 nm
Unknown
Transistors
35.8 billion
Unknown
Die Size
295 mm²
Graphics Features
12 (12_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2
Vulkan
1.3
-
CUDA
8.9
6.3
Shader Model
6.7