AMD Radeon RX 7900M vs AMD Radeon RX 460 Mobile

VS

AMD Radeon RX 7900M

AMD Radeon RX 460 Mobile

We compared two Mobile platform GPUs: 16GB VRAM Radeon RX 7900M and 4GB VRAM Radeon RX 460 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900M 's Advantages

Released 7 years and 2 months late

Boost Clock has increased by 77% (2090MHz vs 1180MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 80.00GB/s)

3712 additional rendering cores

AMD Radeon RX 460 Mobile 's Advantages

Lower TDP (55W vs 180W)

Score

Benchmark

FP32 (float)

Radeon RX 7900M +1721%

38.52 TFLOPS

Radeon RX 460 Mobile

2.115 TFLOPS

Radeon RX 7900M

VS

Radeon RX 460 Mobile

Graphics Card

Oct 2023

Release Date

Aug 2016

Navi Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1825 MHz

Base Clock

1000 MHz

2090 MHz

Boost Clock

1180 MHz

2250 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

80.00GB/s

Render Config

72

Compute Units

14

-

4608

Shading Units

896

288

TMUs

56

192

ROPs

16

-

72

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

1024 KB

64 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

18.88 GPixel/s

601.9 GTexel/s

Texture Rate

66.08 GTexel/s

77.05 TFLOPS

FP16 (half)

2.115 TFLOPS

38.52 TFLOPS

FP32 (float)

2.115 TFLOPS

1204 GFLOPS

FP64 (double)

132.2 GFLOPS

Board Design

180W

TDP

55W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

Baffin

Navi 31

GPU Variant

Baffin XT

RDNA 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

57.7 billion

Transistors

3 billion

529 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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