ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 8990 OEM

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 3GB VRAM Radeon HD 8990 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

Lower TDP (45W vs 375W)

AMD Radeon HD 8990 OEM 's Advantages

Released 5 years and 2 months late

Boost Clock1000MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.0GB/s vs 25.60GB/s)

1928 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 8990 OEM +2338%

4.096 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 8990 OEM

Graphics Card

Feb 2008

Release Date

Apr 2013

Radeon R600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

800 MHz

Memory Clock

1500 MHz

Memory

256MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

25.60GB/s

Bandwidth

288.0GB/s

Render Config

3

Compute Units

32

-

120

Shading Units

2048

8

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

32.00 GPixel/s

5.600 GTexel/s

Texture Rate

128.0 GTexel/s

-

168.0 GFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Board Design

45W

TDP

375W

200 W

Suggested PSU

750 W

2x DVI

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

RV630

GPU Name

Malta

-

GPU Variant

Malta XT (215-0849026)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.39 billion

Transistors

4.313 billion

153 mm²

Die Size

365 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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