AMD Radeon HD 6970 X2 vs NVIDIA GeForce 8800 GT Mac Edition

VS

AMD Radeon HD 6970 X2

NVIDIA GeForce 8800 GT Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 512MB VRAM GeForce 8800 GT Mac Edition 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 512GB)

Larger VRAM bandwidth (176.0GB/s vs 57.60GB/s)

1424 additional rendering cores

NVIDIA GeForce 8800 GT Mac Edition 's Advantages

Lower TDP (125W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +704%

2.703 TFLOPS

GeForce 8800 GT Mac Edition

0.336 TFLOPS

Radeon HD 6970 X2

VS

GeForce 8800 GT Mac Edition

Graphics Card

Unknown

Release Date

Feb 2008

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

57.60GB/s

Render Config

24

Compute Units

-

SM Count

14

1536

Shading Units

112

96

TMUs

56

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

9.600 GPixel/s

84.48 GTexel/s

Texture Rate

33.60 GTexel/s

-

2.703 TFLOPS

FP32 (float)

336.0 GFLOPS

-

Board Design

375W

TDP

125W

750 W

Suggested PSU

300 W

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

Outputs

2x DVI

3x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Antilles

GPU Name

G92

Antilles XT (215-0807027)

GPU Variant

G92-270-A2

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

2.64 billion

Transistors

0.754 billion

389 mm²

Die Size

324 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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