ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 6450

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 's Advantages

Released 3 years and 2 months late

More VRAM (512GB vs 256GB)

40 additional rendering cores

Lower TDP (18W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 6450 +19%

0.2 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 6450

Graphics Card

Feb 2008

Release Date

Apr 2011

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

25.60GB/s

Render Config

3

Compute Units

2

-

120

Shading Units

160

8

TMUs

8

4

ROPs

4

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

2.500 GPixel/s

5.600 GTexel/s

Texture Rate

5.000 GTexel/s

-

168.0 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

45W

TDP

18W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

RV630

GPU Name

Caicos

-

GPU Variant

Caicos PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

0.37 billion

153 mm²

Die Size

67 mm²

Graphics Features

10.0 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.0

Shader Model

5.0

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