AMD Radeon HD 6990M Rebrand vs AMD Radeon HD 6625M

VS

AMD Radeon HD 6990M Rebrand

AMD Radeon HD 6625M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 1024MB VRAM Radeon HD 6625M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

Released 6 months late

Larger VRAM bandwidth (70.40GB/s vs 25.60GB/s)

320 additional rendering cores

AMD Radeon HD 6625M 's Advantages

Lower TDP (26W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand +196%

1.28 TFLOPS

Radeon HD 6625M

0.432 TFLOPS

Radeon HD 6990M Rebrand

VS

Radeon HD 6625M

Graphics Card

Jul 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1100 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

70.40GB/s

Bandwidth

25.60GB/s

Render Config

14

Compute Units

6

-

800

Shading Units

480

40

TMUs

24

16

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

3.600 GPixel/s

32.00 GTexel/s

Texture Rate

10.80 GTexel/s

-

1280 GFLOPS

FP32 (float)

432.0 GFLOPS

-

Board Design

100W

TDP

26W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

Whistler

Broadway XTX

GPU Variant

Whistler LP

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

0.716 billion

166 mm²

Die Size

104 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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