NVIDIA GeForce 8800 Ultra vs AMD Radeon HD 7950 Boost

VS

NVIDIA GeForce 8800 Ultra

AMD Radeon HD 7950 Boost

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 3GB VRAM Radeon HD 7950 Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 Ultra 's Advantages

Lower TDP (171W vs 200W)

AMD Radeon HD 7950 Boost 's Advantages

Released 5 years and 1 months late

Boost Clock925MHz

More VRAM (3GB vs 768GB)

Larger VRAM bandwidth (240.0GB/s vs 103.7GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 7950 Boost +756%

3.315 TFLOPS

GeForce 8800 Ultra

VS

Radeon HD 7950 Boost

Graphics Card

May 2007

Release Date

Jun 2012

GeForce 8

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

925 MHz

1080 MHz

Memory Clock

1250 MHz

Memory

768MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

384bit

Memory Bus

384bit

103.7GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

16

SM Count

-

128

Shading Units

1792

32

TMUs

112

24

ROPs

32

-

L1 Cache

16 KB (per CU)

96 KB

L2 Cache

768 KB

-

Theoretical Performance

14.69 GPixel/s

Pixel Rate

29.60 GPixel/s

39.17 GTexel/s

Texture Rate

103.6 GTexel/s

-

387.1 GFLOPS

FP32 (float)

3.315 TFLOPS

-

FP64 (double)

828.8 GFLOPS

Board Design

171W

TDP

200W

450 W

Suggested PSU

550 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

G80

GPU Name

Tahiti

G80-450-A3

GPU Variant

Tahiti PRO2 (215-0821282)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

90 nm

Process Size

28 nm

0.681 billion

Transistors

4.313 billion

484 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1 (1.0)

OpenCL

1.2

N/A

Vulkan

1.2

1.0

CUDA

-

4.0

Shader Model

5.1

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