ATI Mobility Radeon HD 2700 vs AMD Radeon HD 6990M

VS

ATI Mobility Radeon HD 2700

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 2700 and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 2700 's Advantages

Lower TDP (35W vs 100W)

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

Score

Benchmark

FP32 (float)

Mobility Radeon HD 2700

0.168 TFLOPS

Radeon HD 6990M +853%

1.602 TFLOPS

Mobility Radeon HD 2700

VS

Radeon HD 6990M

Graphics Card

Dec 2007

Release Date

Jul 2011

M7x

Generation

Vancouver

Mobile

Type

Mobile

MXM-II

Bus Interface

MXM-B (3.0)

Clock Speeds

-

700 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

22.40GB/s

Bandwidth

115.2GB/s

Render Config

3

Compute Units

14

-

120

Shading Units

1120

8

TMUs

56

4

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

22.88 GPixel/s

5.600 GTexel/s

Texture Rate

40.04 GTexel/s

-

168.0 GFLOPS

FP32 (float)

1.602 TFLOPS

-

Board Design

35W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M76

GPU Name

Blackcomb

-

GPU Variant

Blackcomb XTX (216-0811030)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

1.7 billion

153 mm²

Die Size

212 mm²

Graphics Features

10.0 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.0

Shader Model

5.0

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