NVIDIA GeForce 8600 GTS Mac Edition vs AMD Radeon HD 6990

VS

NVIDIA GeForce 8600 GTS Mac Edition

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8600 GTS Mac Edition and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8600 GTS Mac Edition 's Advantages

Lower TDP (75W vs 375W)

AMD Radeon HD 6990 's Advantages

Released 3 years and 6 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 32.26GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600 GTS Mac Edition

0.093 TFLOPS

Radeon HD 6990 +2641%

2.55 TFLOPS

GeForce 8600 GTS Mac Edition

VS

Radeon HD 6990

Graphics Card

Sep 2007

Release Date

Mar 2011

GeForce 8

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1008 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.26GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

24

4

SM Count

-

32

Shading Units

1536

16

TMUs

96

8

ROPs

32

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

512 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

26.56 GPixel/s

10.80 GTexel/s

Texture Rate

79.68 GTexel/s

-

92.80 GFLOPS

FP32 (float)

2.550 TFLOPS

-

FP64 (double)

637.4 GFLOPS

Board Design

75W

TDP

375W

250 W

Suggested PSU

750 W

2x DVI

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

G84

GPU Name

Antilles

G84-400-A2

GPU Variant

Antilles XT (215-0807027)

Tesla

Architecture

TeraScale 3

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.289 billion

Transistors

2.64 billion

169 mm²

Die Size

389 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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