ATI Radeon HD 2600 XT Mac Edition vs ATI Radeon HD 4650 AGP

VS

ATI Radeon HD 2600 XT Mac Edition

ATI Radeon HD 4650 AGP

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 512MB VRAM Radeon HD 4650 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 12.80GB/s)

Lower TDP (45W vs 48W)

ATI Radeon HD 4650 AGP 's Advantages

Released 7 months late

More VRAM (512GB vs 256GB)

200 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 4650 AGP +128%

0.384 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 4650 AGP

Graphics Card

Feb 2008

Release Date

Sep 2008

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

12.80GB/s

Render Config

3

Compute Units

4

-

120

Shading Units

320

8

TMUs

32

4

ROPs

8

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

4.800 GPixel/s

5.600 GTexel/s

Texture Rate

19.20 GTexel/s

-

168.0 GFLOPS

FP32 (float)

384.0 GFLOPS

-

Board Design

45W

TDP

48W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Processor

RV630

GPU Name

RV730

-

GPU Variant

RV730 PRO (215-0719056)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.39 billion

Transistors

0.514 billion

153 mm²

Die Size

146 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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