Home GPU Comparison AMD Radeon RX Vega M GH vs NVIDIA GeForce RTX 4090 Mobile

AMD Radeon RX Vega M GH vs NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX Vega M GH and 16GB VRAM GeForce RTX 4090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages
Released 4 years and 11 months late
Boost Clock has increased by 42% (1695MHz vs 1190MHz)
More VRAM (16GB vs 4GB)
Larger VRAM bandwidth (576.0GB/s vs 204.8GB/s)
8192 additional rendering cores
Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)
Radeon RX Vega M GH
3.656 TFLOPS
GeForce RTX 4090 Mobile +802%
32.98 TFLOPS
VS

Graphics Card

Feb 2018
Release Date
Jan 2023
Vega
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
IGP
Bus Interface
PCIe 4.0 x16

Clock Speeds

1063 MHz
Base Clock
1335 MHz
1190 MHz
Boost Clock
1695 MHz
800 MHz
Memory Clock
2250 MHz

Memory

4GB
Memory Size
16GB
HBM2
Memory Type
GDDR6
1024bit
Memory Bus
256bit
204.8GB/s
Bandwidth
576.0GB/s

Render Config

24
Compute Units
-
-
SM Count
76
1536
Shading Units
9728
96
TMUs
304
64
ROPs
112
-
Tensor Cores
304
-
RT Cores
76
16 KB (per CU)
L1 Cache
128 KB (per SM)
1024 KB
L2 Cache
64 MB
-
-
-

Theoretical Performance

76.16 GPixel/s
Pixel Rate
189.8 GPixel/s
114.2 GTexel/s
Texture Rate
515.3 GTexel/s
3.656 TFLOPS
FP16 (half)
32.98 TFLOPS
3.656 TFLOPS
FP32 (float)
32.98 TFLOPS
228.5 GFLOPS
FP64 (double)
515.3 GFLOPS

Board Design

100W
TDP
80-150W
-
-
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
None

Graphics Processor

Polaris 22
GPU Name
AD103
VegaM XT (C7398773)
GPU Variant
GN21-X11
GCN 4.0
Architecture
Ada Lovelace
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
5 nm
5 billion
Transistors
45.9 billion
208 mm²
Die Size
379 mm²

Graphics Features

12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2
Vulkan
1.3
-
CUDA
8.9
6.4
Shader Model
6.8

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