AMD Radeon HD 7670M vs AMD Radeon HD 6990M Rebrand

VS

AMD Radeon HD 7670M

AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages

Released 7 months late

Lower TDP (20W vs 100W)

AMD Radeon HD 6990M Rebrand 's Advantages

Larger VRAM bandwidth (70.40GB/s vs 28.80GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670M

0.576 TFLOPS

Radeon HD 6990M Rebrand +122%

1.28 TFLOPS

Radeon HD 7670M

VS

Radeon HD 6990M Rebrand

Graphics Card

Feb 2012

Release Date

Jul 2011

London

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

1100 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

70.40GB/s

Render Config

6

Compute Units

14

-

480

Shading Units

800

24

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

12.80 GPixel/s

14.40 GTexel/s

Texture Rate

32.00 GTexel/s

-

576.0 GFLOPS

FP32 (float)

1280 GFLOPS

-

Board Design

20W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Thames

GPU Name

Broadway

Thames XT (216-0833000)

GPU Variant

Broadway XTX

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

1.04 billion

104 mm²

Die Size

166 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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