ATI Radeon HD 3870 Mac Edition vs ATI Radeon X800 GTO

VS

ATI Radeon HD 3870 Mac Edition

ATI Radeon X800 GTO

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 128MB VRAM Radeon X800 GTO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages

Released 6 months late

More VRAM (512GB vs 128GB)

Larger VRAM bandwidth (72.06GB/s vs 22.40GB/s)

320 additional rendering cores

ATI Radeon X800 GTO 's Advantages

Lower TDP (49W vs 106W)

Score

Radeon HD 3870 Mac Edition

VS

Radeon X800 GTO

Graphics Card

Jun 2008

Release Date

Dec 2007

Radeon R600

Generation

Radeon R400 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

350 MHz

Memory

512MB

Memory Size

128MB

GDDR4

Memory Type

DDR

256bit

Memory Bus

256bit

72.06GB/s

Bandwidth

22.40GB/s

Render Config

4

Compute Units

-

320

Shading Units

-

16

TMUs

12

16

ROPs

12

-

256 KB

L2 Cache

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

4.800 GPixel/s

12.43 GTexel/s

Texture Rate

4.800 GTexel/s

-

497.3 GFLOPS

FP32 (float)

-

99.46 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

49W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

-

Graphics Processor

RV670

GPU Name

R423

RV670 XT (215-0708005)

GPU Variant

R423 GTO

TeraScale

Architecture

R400

TSMC

Foundry

TSMC

55 nm

Process Size

130 nm

0.666 billion

Transistors

0.16 billion

192 mm²

Die Size

289 mm²

Graphics Features

10.1 (10_1)

DirectX

9.0b (9_2)

3.3 (full) 4.0 (partial)

OpenGL

2.1

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

-

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