NVIDIA GeForce 8600M GT Mac Edition vs AMD Radeon HD 6990M Rebrand

VS

NVIDIA GeForce 8600M GT Mac Edition AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 512MB VRAM GeForce 8600M GT Mac Edition and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8600M GT Mac Edition 's Advantages

Lower TDP (20W vs 100W)

AMD Radeon HD 6990M Rebrand 's Advantages

Released 3 years and 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (70.40GB/s vs 20.32GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600M GT Mac Edition

0.06 TFLOPS

Radeon HD 6990M Rebrand +2033%

1.28 TFLOPS

GeForce 8600M GT Mac Edition

VS

Radeon HD 6990M Rebrand

Graphics Card

Oct 2007

Release Date

Jul 2011

GeForce 8M

Generation

Vancouver

Mobile

Type

Mobile

MXM-II

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

635 MHz

Memory Clock

1100 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

20.32GB/s

Bandwidth

70.40GB/s

Render Config

4

SM Count

-

Compute Units

14

32

Shading Units

800

16

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

256 KB

Theoretical Performance

3.760 GPixel/s

Pixel Rate

12.80 GPixel/s

7.520 GTexel/s

Texture Rate

32.00 GTexel/s

-

FP16 (half)

-

60.16 GFLOPS

FP32 (float)

1280 GFLOPS

-

FP64 (double)

-

Graphics Processor

G84

GPU Name

Broadway

NB8P-GS

GPU Variant

Broadway XTX

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.289 billion

Transistors

1.04 billion

169 mm²

Die Size

166 mm²

Board Design

20W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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