NVIDIA GeForce 8800 Ultra vs ATI Radeon HD 4750

VS

NVIDIA GeForce 8800 Ultra

ATI Radeon HD 4750

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 512MB VRAM Radeon HD 4750 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 512GB)

Larger VRAM bandwidth (103.7GB/s vs 51.20GB/s)

ATI Radeon HD 4750 's Advantages

Released 2 years and 4 months late

512 additional rendering cores

Lower TDP (100W vs 171W)

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 4750 +141%

0.934 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 4750

Graphics Card

May 2007

Release Date

Sep 2009

GeForce 8

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1080 MHz

Memory Clock

800 MHz

Memory

768MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

384bit

Memory Bus

128bit

103.7GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

8

16

SM Count

-

128

Shading Units

640

32

TMUs

32

24

ROPs

16

-

L1 Cache

16 KB (per CU)

96 KB

L2 Cache

128 KB

-

Theoretical Performance

14.69 GPixel/s

Pixel Rate

11.68 GPixel/s

39.17 GTexel/s

Texture Rate

23.36 GTexel/s

-

387.1 GFLOPS

FP32 (float)

934.4 GFLOPS

-

FP64 (double)

186.9 GFLOPS

Board Design

171W

TDP

100W

450 W

Suggested PSU

300 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

RV740

G80-450-A3

GPU Variant

RV740 PRO

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

90 nm

Process Size

40 nm

0.681 billion

Transistors

0.826 billion

484 mm²

Die Size

137 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1 (1.0)

OpenCL

1.1

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

4.1

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