AMD Radeon HD 6970 X2 vs NVIDIA GeForce 8800 Ultra

VS

AMD Radeon HD 6970 X2

NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970 X2 's Advantages

More VRAM (2GB vs 768GB)

Larger VRAM bandwidth (176.0GB/s vs 103.7GB/s)

1408 additional rendering cores

NVIDIA GeForce 8800 Ultra 's Advantages

Lower TDP (171W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +598%

2.703 TFLOPS

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 6970 X2

VS

GeForce 8800 Ultra

Graphics Card

Unknown

Release Date

May 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1080 MHz

Memory

2GB

Memory Size

768MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

384bit

176.0GB/s

Bandwidth

103.7GB/s

Render Config

24

Compute Units

-

SM Count

16

1536

Shading Units

128

96

TMUs

32

ROPs

24

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

96 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

14.69 GPixel/s

84.48 GTexel/s

Texture Rate

39.17 GTexel/s

-

2.703 TFLOPS

FP32 (float)

387.1 GFLOPS

-

Board Design

375W

TDP

171W

750 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

3x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Antilles

GPU Name

G80

Antilles XT (215-0807027)

GPU Variant

G80-450-A3

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

90 nm

2.64 billion

Transistors

0.681 billion

389 mm²

Die Size

484 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

5.0

Shader Model

4.0

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