ATI Mobility Radeon HD 2600 XT vs ATI Mobility Radeon HD 4870

VS

ATI Mobility Radeon HD 2600 XT

ATI Mobility Radeon HD 4870

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 2600 XT and 512MB VRAM Mobility Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4870 's Advantages

Released 1 years and 8 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (56.83GB/s vs 24.00GB/s)

680 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 2600 XT

0.163 TFLOPS

Mobility Radeon HD 4870 +439%

0.88 TFLOPS

Mobility Radeon HD 2600 XT

VS

Mobility Radeon HD 4870

Graphics Card

May 2007

Release Date

Jan 2009

M7x

Generation

M9x

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

888 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

24.00GB/s

Bandwidth

56.83GB/s

Render Config

3

Compute Units

10

-

120

Shading Units

800

8

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.720 GPixel/s

Pixel Rate

8.800 GPixel/s

5.440 GTexel/s

Texture Rate

22.00 GTexel/s

-

163.2 GFLOPS

FP32 (float)

880.0 GFLOPS

-

FP64 (double)

176.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

M76

GPU Name

M98

M76 XT-M (216XJBKA13FG)

GPU Variant

M98 XT L2 (216-0732023)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.39 billion

Transistors

0.956 billion

153 mm²

Die Size

256 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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