AMD Radeon RX 7900M vs ATI Mobility Radeon HD 4850 X2

VS

AMD Radeon RX 7900M

ATI Mobility Radeon HD 4850 X2

We compared two Mobile platform GPUs: 16GB VRAM Radeon RX 7900M and 1024MB VRAM Mobility Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900M 's Advantages

Released 14 years and 9 months late

Boost Clock2090MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (576.0GB/s vs 89.60GB/s)

3808 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7900M +4715%

38.52 TFLOPS

Mobility Radeon HD 4850 X2

0.8 TFLOPS

Radeon RX 7900M

VS

Mobility Radeon HD 4850 X2

Graphics Card

Oct 2023

Release Date

Jan 2009

Navi Mobile

Generation

M9x

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2090 MHz

Boost Clock

-

2250 MHz

Memory Clock

700 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

89.60GB/s

Render Config

72

Compute Units

10

-

4608

Shading Units

800

288

TMUs

40

192

ROPs

16

-

72

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

8.000 GPixel/s

601.9 GTexel/s

Texture Rate

20.00 GTexel/s

77.05 TFLOPS

FP16 (half)

-

38.52 TFLOPS

FP32 (float)

800.0 GFLOPS

1204 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

180W

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

M98

Navi 31

GPU Variant

M98 L2 (216-0732019)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.956 billion

529 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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