ATI Radeon HD 4870 vs NVIDIA GeForce 6800

VS

ATI Radeon HD 4870

NVIDIA GeForce 6800

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 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 4870 's Advantages

Released 3 years and 7 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 19.20GB/s)

800 additional rendering cores

Score

Radeon HD 4870

VS

GeForce 6800

Graphics Card

Jun 2008

Release Date

Nov 2004

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

300 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

19.20GB/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

2.600 GPixel/s

30.00 GTexel/s

Texture Rate

3.900 GTexel/s

-

1200 GFLOPS

FP32 (float)

-

240.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

Unknown

450 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

NV41

RV770 XT (215-0669049)

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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