AMD Radeon HD 6990M Rebrand vs ATI Mobility Radeon HD 2400 XT Mac Edition

VS

AMD Radeon HD 6990M Rebrand

ATI Mobility Radeon HD 2400 XT Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 128MB VRAM Mobility Radeon HD 2400 XT Mac Edition 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 4 years and 1 months late

More VRAM (1024GB vs 128GB)

Larger VRAM bandwidth (70.40GB/s vs 12.80GB/s)

760 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand +2361%

1.28 TFLOPS

Mobility Radeon HD 2400 XT Mac Edition

0.052 TFLOPS

Radeon HD 6990M Rebrand

VS

Mobility Radeon HD 2400 XT Mac Edition

Graphics Card

Jul 2011

Release Date

Jun 2007

Vancouver

Generation

M7x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1100 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

128MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

70.40GB/s

Bandwidth

12.80GB/s

Render Config

14

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

2.600 GPixel/s

32.00 GTexel/s

Texture Rate

2.600 GTexel/s

-

1280 GFLOPS

FP32 (float)

52.00 GFLOPS

-

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Broadway

GPU Name

M74

Broadway XTX

GPU Variant

M74-M (216RMAKA12FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.04 billion

Transistors

0.18 billion

166 mm²

Die Size

85 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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