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

VS

NVIDIA GeForce 8600M GT Mac Edition

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 512MB VRAM GeForce 8600M GT Mac Edition and 2GB VRAM Radeon HD 6990M 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 's Advantages

Released 3 years and 9 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 20.32GB/s)

1088 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600M GT Mac Edition

0.06 TFLOPS

Radeon HD 6990M +2570%

1.602 TFLOPS

GeForce 8600M GT Mac Edition

VS

Radeon HD 6990M

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

-

635 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

20.32GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

14

4

SM Count

-

32

Shading Units

1120

16

TMUs

56

8

ROPs

32

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

512 KB

-

Theoretical Performance

3.760 GPixel/s

Pixel Rate

22.88 GPixel/s

7.520 GTexel/s

Texture Rate

40.04 GTexel/s

-

60.16 GFLOPS

FP32 (float)

1.602 TFLOPS

-

Board Design

20W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

G84

GPU Name

Blackcomb

NB8P-GS

GPU Variant

Blackcomb XTX (216-0811030)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.289 billion

Transistors

1.7 billion

169 mm²

Die Size

212 mm²

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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