AMD Radeon HD 6990M vs ATI Mobility Radeon HD 3430

VS

AMD Radeon HD 6990M

ATI Mobility Radeon HD 3430

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 256MB VRAM Mobility Radeon HD 3430 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Released 3 years late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 6.400GB/s)

1080 additional rendering cores

ATI Mobility Radeon HD 3430 's Advantages

Lower TDP (12W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +4350%

1.602 TFLOPS

Mobility Radeon HD 3430

0.036 TFLOPS

Radeon HD 6990M

VS

Mobility Radeon HD 3430

Graphics Card

Jul 2011

Release Date

Jul 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

6.400GB/s

Render Config

14

Compute Units

2

-

1120

Shading Units

40

56

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

1.800 GPixel/s

40.04 GTexel/s

Texture Rate

1.800 GTexel/s

-

1.602 TFLOPS

FP32 (float)

36.00 GFLOPS

-

Board Design

100W

TDP

12W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

M82

Blackcomb XTX (216-0811030)

GPU Variant

M82-SE

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.181 billion

212 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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