ATI Mobility Radeon HD 4650 vs AMD Radeon HD 7670M Rebrand

VS

ATI Mobility Radeon HD 4650

AMD Radeon HD 7670M Rebrand

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 and 1024MB VRAM Radeon HD 7670M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M Rebrand 's Advantages

Released 3 years and 6 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (28.80GB/s vs 19.20GB/s)

160 additional rendering cores

Lower TDP (20W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 7670M Rebrand +80%

0.576 TFLOPS

Mobility Radeon HD 4650

VS

Radeon HD 7670M Rebrand

Graphics Card

Jan 2009

Release Date

Jul 2012

M9x

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

128bit

19.20GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

32

TMUs

24

8

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

9.600 GPixel/s

16.00 GTexel/s

Texture Rate

14.40 GTexel/s

-

320.0 GFLOPS

FP32 (float)

576.0 GFLOPS

-

Board Design

35W

TDP

20W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

Whistler

-

GPU Variant

Whistler XT (216-0810001)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

0.716 billion

146 mm²

Die Size

104 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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