ATI Radeon HD 3870 AGP vs NVIDIA GeForce 6800

VS

ATI Radeon HD 3870 AGP

NVIDIA GeForce 6800

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 AGP and 256MB VRAM GeForce 6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 AGP 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (72.06GB/s vs 19.20GB/s)

320 additional rendering cores

Score

Radeon HD 3870 AGP

VS

GeForce 6800

Graphics Card

Unknown

Release Date

Nov 2004

Radeon R600

Generation

GeForce 6 PCIe

Desktop

Type

Desktop

AGP 8x

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

300 MHz

Memory

512MB

Memory Size

256MB

GDDR4

Memory Type

DDR

256bit

Memory Bus

256bit

72.06GB/s

Bandwidth

19.20GB/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

2.600 GPixel/s

12.43 GTexel/s

Texture Rate

3.900 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 8-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

NV41

RV670 XT (215-0708005)

GPU Variant

-

TeraScale

Architecture

Curie

TSMC

Foundry

TSMC

55 nm

Process Size

130 nm

0.666 billion

Transistors

0.19 billion

192 mm²

Die Size

225 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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