AMD Radeon HD 6990M vs ATI Mobility Radeon HD 2700

VS

AMD Radeon HD 6990M

ATI Mobility Radeon HD 2700

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 256MB VRAM Mobility Radeon HD 2700 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 and 7 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 22.40GB/s)

1000 additional rendering cores

ATI Mobility Radeon HD 2700 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +853%

1.602 TFLOPS

Mobility Radeon HD 2700

0.168 TFLOPS

Radeon HD 6990M

VS

Mobility Radeon HD 2700

Graphics Card

Jul 2011

Release Date

Dec 2007

Vancouver

Generation

M7x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

22.40GB/s

Render Config

14

Compute Units

3

-

1120

Shading Units

120

56

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

2.800 GPixel/s

40.04 GTexel/s

Texture Rate

5.600 GTexel/s

-

1.602 TFLOPS

FP32 (float)

168.0 GFLOPS

-

Board Design

100W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

M76

Blackcomb XTX (216-0811030)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.7 billion

Transistors

0.39 billion

212 mm²

Die Size

153 mm²

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.0

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