AMD Radeon HD 6625M vs ATI Mobility Radeon HD 4650

VS

AMD Radeon HD 6625M

ATI Mobility Radeon HD 4650

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M 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 6625M 's Advantages

Released 2 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (25.60GB/s vs 19.20GB/s)

160 additional rendering cores

Lower TDP (26W vs 35W)

Score

Benchmark

FP32 (float)

Radeon HD 6625M +35%

0.432 TFLOPS

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 6625M

VS

Mobility Radeon HD 4650

Graphics Card

Jan 2011

Release Date

Jan 2009

Vancouver

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

19.20GB/s

Render Config

6

Compute Units

4

-

480

Shading Units

320

24

TMUs

32

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

4.000 GPixel/s

10.80 GTexel/s

Texture Rate

16.00 GTexel/s

-

432.0 GFLOPS

FP32 (float)

320.0 GFLOPS

-

Board Design

26W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

M96

Whistler LP

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.514 billion

104 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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