ATI Radeon HD 4870 X2 vs NVIDIA GeForce 8600 GT Mac Edition

VS

ATI Radeon HD 4870 X2

NVIDIA GeForce 8600 GT Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 128MB VRAM GeForce 8600 GT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Released 1 years and 4 months late

More VRAM (1024GB vs 128GB)

Larger VRAM bandwidth (115.2GB/s vs 24.00GB/s)

768 additional rendering cores

NVIDIA GeForce 8600 GT Mac Edition 's Advantages

Lower TDP (47W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +1190%

1.2 TFLOPS

GeForce 8600 GT Mac Edition

0.093 TFLOPS

Radeon HD 4870 X2

VS

GeForce 8600 GT Mac Edition

Graphics Card

Aug 2008

Release Date

Apr 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

900 MHz

Memory Clock

750 MHz

Memory

1024MB

Memory Size

128MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

24.00GB/s

Render Config

10

Compute Units

-

SM Count

4

800

Shading Units

32

40

TMUs

16

ROPs

8

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

4.800 GPixel/s

30.00 GTexel/s

Texture Rate

9.600 GTexel/s

-

1200 GFLOPS

FP32 (float)

92.80 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

286W

TDP

47W

600 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

2x DVI

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R700

GPU Name

G84

R700 XT (215-0669045)

GPU Variant

G84-303-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.956 billion

Transistors

0.289 billion

256 mm²

Die Size

169 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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