Home GPU Comparison NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon R9 M485X

NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon R9 M485X

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 8GB VRAM Radeon R9 M485X 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 6 years and 8 months late
Boost Clock1695MHz
More VRAM (16GB vs 8GB)
Larger VRAM bandwidth (576.0GB/s vs 160.0GB/s)
7680 additional rendering cores
Lower TDP (80W vs 250W)

Score

Benchmark

FP32 (float)
GeForce RTX 4090 Mobile +1013%
32.98 TFLOPS
Radeon R9 M485X
2.961 TFLOPS
VS

Graphics Card

Jan 2023
Release Date
May 2016
GeForce 40 Mobile
Generation
Crystal System
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
MXM-B (3.0)

Clock Speeds

1335 MHz
Base Clock
-
1695 MHz
Boost Clock
-
2250 MHz
Memory Clock
1250 MHz

Memory

16GB
Memory Size
8GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
576.0GB/s
Bandwidth
160.0GB/s

Render Config

-
Compute Units
32
76
SM Count
-
9728
Shading Units
2048
304
TMUs
128
112
ROPs
32
304
Tensor Cores
-
76
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
64 MB
L2 Cache
512 KB
-
-
-

Theoretical Performance

189.8 GPixel/s
Pixel Rate
23.14 GPixel/s
515.3 GTexel/s
Texture Rate
92.54 GTexel/s
32.98 TFLOPS
FP16 (half)
2.961 TFLOPS
32.98 TFLOPS
FP32 (float)
2.961 TFLOPS
515.3 GFLOPS
FP64 (double)
185.1 GFLOPS

Board Design

80-150W
TDP
250W
-
-
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
None

Graphics Processor

AD103
GPU Name
Amethyst
GN21-X11
GPU Variant
Amethyst XT
Ada Lovelace
Architecture
GCN 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
45.9 billion
Transistors
5 billion
379 mm²
Die Size
366 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.0
1.3
Vulkan
1.2
8.9
CUDA
-
6.8
Shader Model
6.3

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