ATI Radeon HD 3850 X3 vs NVIDIA GeForce 8800 Ultra

VS

ATI Radeon HD 3850 X3

NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 X3 and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3850 X3 's Advantages

192 additional rendering cores

Lower TDP (145W vs 171W)

NVIDIA GeForce 8800 Ultra 's Advantages

More VRAM (768GB vs 512GB)

Larger VRAM bandwidth (103.7GB/s vs 54.40GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 3850 X3 +10%

0.428 TFLOPS

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 3850 X3

VS

GeForce 8800 Ultra

Graphics Card

Unknown

Release Date

May 2007

Radeon R600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

850 MHz

Memory Clock

1080 MHz

Memory

512MB

Memory Size

768MB

GDDR3

Memory Type

GDDR3

256bit

Memory Bus

384bit

54.40GB/s

Bandwidth

103.7GB/s

Render Config

4

Compute Units

-

SM Count

16

320

Shading Units

128

16

TMUs

32

16

ROPs

24

-

256 KB

L2 Cache

96 KB

-

Theoretical Performance

10.70 GPixel/s

Pixel Rate

14.69 GPixel/s

10.70 GTexel/s

Texture Rate

39.17 GTexel/s

-

428.2 GFLOPS

FP32 (float)

387.1 GFLOPS

-

Board Design

145W

TDP

171W

300 W

Suggested PSU

450 W

4x DVI

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

RV670

GPU Name

G80

RV670 PRO (215-0708003)

GPU Variant

G80-450-A3

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

90 nm

0.666 billion

Transistors

0.681 billion

192 mm²

Die Size

484 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

4.1

Shader Model

4.0

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