ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 8490 OEM

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 8490 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 1024MB VRAM Radeon HD 8490 OEM 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 14.40GB/s)

AMD Radeon HD 8490 OEM 's Advantages

Released 5 years and 5 months late

More VRAM (1024GB vs 256GB)

40 additional rendering cores

Lower TDP (35W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 8490 OEM +66%

0.28 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 8490 OEM

Graphics Card

Feb 2008

Release Date

Jul 2013

Radeon R600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

14.40GB/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

3.500 GPixel/s

5.600 GTexel/s

Texture Rate

7.000 GTexel/s

-

168.0 GFLOPS

FP32 (float)

280.0 GFLOPS

-

Board Design

45W

TDP

35W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x DisplayPort 1.1

None

Power Connectors

None

Graphics Processor

RV630

GPU Name

Caicos

-

GPU Variant

Caicos XTX

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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