ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon R9 270X

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon R9 270X

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 2GB VRAM Radeon R9 270X 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

Lower TDP (45W vs 180W)

AMD Radeon R9 270X 's Advantages

Released 5 years and 8 months late

Boost Clock1050MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (179.2GB/s vs 25.60GB/s)

1160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon R9 270X +1500%

2.688 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon R9 270X

Graphics Card

Feb 2008

Release Date

Oct 2013

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

800 MHz

Memory Clock

1400 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

179.2GB/s

Render Config

3

Compute Units

20

-

120

Shading Units

1280

8

TMUs

80

4

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

33.60 GPixel/s

5.600 GTexel/s

Texture Rate

84.00 GTexel/s

-

168.0 GFLOPS

FP32 (float)

2.688 TFLOPS

-

FP64 (double)

168.0 GFLOPS

Board Design

45W

TDP

180W

200 W

Suggested PSU

450 W

2x DVI

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

2x 6-pin

Graphics Processor

RV630

GPU Name

Curacao

-

GPU Variant

Curacao XT (215-0848004)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.39 billion

Transistors

2.8 billion

153 mm²

Die Size

212 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.0

Shader Model

5.1

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