AMD Radeon HD 6490M vs ATI Mobility Radeon HD 2600 XT Mac Edition

VS

AMD Radeon HD 6490M

ATI Mobility Radeon HD 2600 XT Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 256MB VRAM Mobility Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490M 's Advantages

Released 3 years and 6 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (25.60GB/s vs 21.92GB/s)

40 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M +77%

0.256 TFLOPS

Mobility Radeon HD 2600 XT Mac Edition

0.144 TFLOPS

Radeon HD 6490M

VS

Mobility Radeon HD 2600 XT Mac Edition

Graphics Card

Jan 2011

Release Date

Jul 2007

Vancouver

Generation

M7x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

800 MHz

Memory Clock

685 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

128bit

25.60GB/s

Bandwidth

21.92GB/s

Render Config

2

Compute Units

3

-

160

Shading Units

120

8

TMUs

8

4

ROPs

4

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

64 KB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

2.400 GPixel/s

6.400 GTexel/s

Texture Rate

4.800 GTexel/s

-

256.0 GFLOPS

FP32 (float)

144.0 GFLOPS

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Seymour

GPU Name

M76

Seymour XTX S3 (216-0809024)

GPU Variant

M76 XT-M (216XJBKA13FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

0.37 billion

Transistors

0.39 billion

67 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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