ATI Mobility Radeon HD 4650 vs AMD Radeon HD 7950M

VS

ATI Mobility Radeon HD 4650

AMD Radeon HD 7950M

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

Main Differences

ATI Mobility Radeon HD 4650 's Advantages

Lower TDP (35W vs 75W)

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

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 7950M +460%

1.792 TFLOPS

Mobility Radeon HD 4650

VS

Radeon HD 7950M

Graphics Card

Jan 2009

Release Date

Apr 2012

M9x

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

600 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

19.20GB/s

Bandwidth

128.0GB/s

Render Config

4

Compute Units

20

-

320

Shading Units

1280

32

TMUs

80

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

22.40 GPixel/s

16.00 GTexel/s

Texture Rate

56.00 GTexel/s

-

320.0 GFLOPS

FP32 (float)

1.792 TFLOPS

-

Board Design

35W

TDP

75W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

Wimbledon

-

GPU Variant

Wimbledon PRO

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

2.8 billion

146 mm²

Die Size

212 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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