AMD Radeon HD 7950M vs ATI Mobility Radeon HD 4650

VS

AMD Radeon HD 7950M

ATI Mobility Radeon HD 4650

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M and 512MB VRAM Mobility Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950M 's Advantages

Released 3 years and 3 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 19.20GB/s)

960 additional rendering cores

ATI Mobility Radeon HD 4650 's Advantages

Lower TDP (35W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +460%

1.792 TFLOPS

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 7950M

VS

Mobility Radeon HD 4650

Graphics Card

Apr 2012

Release Date

Jan 2009

London

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

600 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

19.20GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

22.40 GPixel/s

Pixel Rate

4.000 GPixel/s

56.00 GTexel/s

Texture Rate

16.00 GTexel/s

-

1.792 TFLOPS

FP32 (float)

320.0 GFLOPS

-

Board Design

75W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Wimbledon

GPU Name

M96

Wimbledon PRO

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.514 billion

212 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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