NVIDIA GeForce 8800 Ultra vs ATI Radeon HD 3690

VS

NVIDIA GeForce 8800 Ultra

ATI Radeon HD 3690

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 256MB VRAM Radeon HD 3690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 Ultra 's Advantages

More VRAM (768GB vs 256GB)

Larger VRAM bandwidth (103.7GB/s vs 26.56GB/s)

ATI Radeon HD 3690 's Advantages

Released 10 months late

192 additional rendering cores

Lower TDP (75W vs 171W)

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 3690 +10%

0.429 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 3690

Graphics Card

May 2007

Release Date

Mar 2008

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1080 MHz

Memory Clock

830 MHz

Memory

768MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

384bit

Memory Bus

128bit

103.7GB/s

Bandwidth

26.56GB/s

Render Config

-

Compute Units

4

16

SM Count

-

128

Shading Units

320

32

TMUs

16

24

ROPs

16

-

96 KB

L2 Cache

128 KB

-

Theoretical Performance

14.69 GPixel/s

Pixel Rate

10.72 GPixel/s

39.17 GTexel/s

Texture Rate

10.72 GTexel/s

-

387.1 GFLOPS

FP32 (float)

428.8 GFLOPS

-

FP64 (double)

85.76 GFLOPS

Board Design

171W

TDP

75W

450 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

G80

GPU Name

RV670

G80-450-A3

GPU Variant

RV670 PRO (215-0708003)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

90 nm

Process Size

55 nm

0.681 billion

Transistors

0.666 billion

484 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 (1.0)

OpenCL

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

4.1

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