ATI Radeon HD 4870 X2 vs NVIDIA GeForce 6800 GS

VS

ATI Radeon HD 4870 X2

NVIDIA GeForce 6800 GS

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 256MB VRAM GeForce 6800 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Released 2 years and 9 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 32.00GB/s)

800 additional rendering cores

Score

Radeon HD 4870 X2

VS

GeForce 6800 GS

Graphics Card

Aug 2008

Release Date

Nov 2005

Radeon R700

Generation

GeForce 6 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

900 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

32.00GB/s

Render Config

10

Compute Units

-

800

Shading Units

-

40

TMUs

12

16

ROPs

8

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

3.400 GPixel/s

30.00 GTexel/s

Texture Rate

5.100 GTexel/s

-

1200 GFLOPS

FP32 (float)

-

240.0 GFLOPS

FP64 (double)

-

Board Design

286W

TDP

Unknown

600 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R700

GPU Name

NV41

R700 XT (215-0669045)

GPU Variant

-

TeraScale

Architecture

Curie

TSMC

Foundry

TSMC

55 nm

Process Size

130 nm

0.956 billion

Transistors

0.19 billion

256 mm²

Die Size

225 mm²

Graphics Features

10.1 (10_1)

DirectX

9.0c (9_3)

3.3

OpenGL

2.0 (full) 2.1 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

3.0

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