NVIDIA GeForce 8800 Ultra vs ATI Radeon HD 5550

VS

NVIDIA GeForce 8800 Ultra

ATI Radeon HD 5550

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 512MB VRAM Radeon HD 5550 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 5550 's Advantages

Released 2 years and 9 months late

192 additional rendering cores

Lower TDP (39W vs 171W)

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra +9%

0.387 TFLOPS

Radeon HD 5550

0.352 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 5550

Graphics Card

May 2007

Release Date

Feb 2010

GeForce 8

Generation

Evergreen

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

4

16

SM Count

-

128

Shading Units

320

32

TMUs

16

24

ROPs

8

-

L1 Cache

8 KB (per CU)

96 KB

L2 Cache

256 KB

-

Theoretical Performance

14.69 GPixel/s

Pixel Rate

4.400 GPixel/s

39.17 GTexel/s

Texture Rate

8.800 GTexel/s

-

387.1 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

171W

TDP

39W

450 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

G80

GPU Name

Redwood

G80-450-A3

GPU Variant

Redwood PRO2

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

90 nm

Process Size

40 nm

0.681 billion

Transistors

0.627 billion

484 mm²

Die Size

104 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1 (1.0)

OpenCL

1.2

N/A

Vulkan

N/A

1.0

CUDA

-

4.0

Shader Model

5.0

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