NVIDIA GeForce 8800 GT vs ATI Radeon HD 3870 X2

VS

NVIDIA GeForce 8800 GT

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8800 GT and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 GT 's Advantages

Lower TDP (125W vs 165W)

ATI Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (57.66GB/s vs 57.60GB/s)

208 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8800 GT

0.336 TFLOPS

Radeon HD 3870 X2 +57%

0.528 TFLOPS

GeForce 8800 GT

VS

Radeon HD 3870 X2

Graphics Card

Oct 2007

Release Date

Jan 2008

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

901 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

256bit

Memory Bus

256bit

57.60GB/s

Bandwidth

57.66GB/s

Render Config

-

Compute Units

4

14

SM Count

-

112

Shading Units

320

56

TMUs

16

ROPs

16

-

64 KB

L2 Cache

256 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

13.20 GPixel/s

33.60 GTexel/s

Texture Rate

13.20 GTexel/s

-

336.0 GFLOPS

FP32 (float)

528.0 GFLOPS

-

FP64 (double)

105.6 GFLOPS

Board Design

125W

TDP

165W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

G92

GPU Name

R680

G92-270-A2

GPU Variant

R680 XT (215-0708017)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.754 billion

Transistors

0.666 billion

324 mm²

Die Size

192 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

4.1

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