ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 6800 XT

VS

ATI Radeon HD 3870 Mac Edition

NVIDIA GeForce 6800 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 256MB VRAM GeForce 6800 XT 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 2 years and 9 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (72.06GB/s vs 38.40GB/s)

320 additional rendering cores

Score

Radeon HD 3870 Mac Edition

VS

GeForce 6800 XT

Graphics Card

Jun 2008

Release Date

Sep 2005

Radeon R600

Generation

GeForce 6 AGP

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1126 MHz

Memory Clock

600 MHz

Memory

512MB

Memory Size

256MB

GDDR4

Memory Type

GDDR3

256bit

Memory Bus

256bit

72.06GB/s

Bandwidth

38.40GB/s

Render Config

4

Compute Units

-

320

Shading Units

-

16

TMUs

12

16

ROPs

8

-

256 KB

L2 Cache

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

3.600 GPixel/s

12.43 GTexel/s

Texture Rate

5.400 GTexel/s

-

497.3 GFLOPS

FP32 (float)

-

99.46 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

Unknown

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

1x Molex

Graphics Processor

RV670

GPU Name

NV42

RV670 XT (215-0708005)

GPU Variant

6800 XT

TeraScale

Architecture

Curie

TSMC

Foundry

TSMC

55 nm

Process Size

110 nm

0.666 billion

Transistors

0.202 billion

192 mm²

Die Size

222 mm²

Graphics Features

10.1 (10_1)

DirectX

9.0c (9_3)

3.3 (full) 4.0 (partial)

OpenGL

2.0 (full) 2.1 (partial)

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

3.0

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