AMD Radeon HD 6970M Rebrand vs AMD Radeon HD 6990M

VS

AMD Radeon HD 6970M Rebrand

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M Rebrand and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Rebrand 's Advantages

Lower TDP (75W vs 100W)

AMD Radeon HD 6990M 's Advantages

Released 6 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6970M Rebrand

1.28 TFLOPS

Radeon HD 6990M +25%

1.602 TFLOPS

Radeon HD 6970M Rebrand

VS

Radeon HD 6990M

Graphics Card

Jan 2011

Release Date

Jul 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

115.2GB/s

Render Config

10

Compute Units

14

-

800

Shading Units

1120

40

TMUs

56

16

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

22.88 GPixel/s

32.00 GTexel/s

Texture Rate

40.04 GTexel/s

-

1280 GFLOPS

FP32 (float)

1.602 TFLOPS

-

Board Design

75W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Broadway

GPU Name

Blackcomb

Broadway XT

GPU Variant

Blackcomb XTX (216-0811030)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

1.7 billion

166 mm²

Die Size

212 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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