ATI Radeon HD 4870 X2 vs ATI Radeon HD 2600 XT AGP

VS

ATI Radeon HD 4870 X2

ATI Radeon HD 2600 XT AGP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 256MB VRAM Radeon HD 2600 XT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Released 1 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 25.60GB/s)

680 additional rendering cores

ATI Radeon HD 2600 XT AGP 's Advantages

Lower TDP (45W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +525%

1.2 TFLOPS

Radeon HD 2600 XT AGP

0.192 TFLOPS

Radeon HD 4870 X2

VS

Radeon HD 2600 XT AGP

Graphics Card

Aug 2008

Release Date

Jun 2007

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

900 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

25.60GB/s

Render Config

10

Compute Units

3

-

800

Shading Units

120

40

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

3.200 GPixel/s

30.00 GTexel/s

Texture Rate

6.400 GTexel/s

-

1200 GFLOPS

FP32 (float)

192.0 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

286W

TDP

45W

600 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R700

GPU Name

RV630

R700 XT (215-0669045)

GPU Variant

RV630 XT (215CDABKA15FG)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

65 nm

0.956 billion

Transistors

0.39 billion

256 mm²

Die Size

153 mm²

Graphics Features

10.1 (10_1)

DirectX

10.0 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.0

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