AMD Radeon HD 6870M vs NVIDIA GeForce 8600M GT

VS

AMD Radeon HD 6870M

NVIDIA GeForce 8600M GT

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 512MB VRAM GeForce 8600M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Released 3 years and 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 22.40GB/s)

768 additional rendering cores

NVIDIA GeForce 8600M GT 's Advantages

Lower TDP (20W vs 50W)

Score

Benchmark

FP32 (float)

Radeon HD 6870M +1670%

1.08 TFLOPS

GeForce 8600M GT

0.061 TFLOPS

Radeon HD 6870M

VS

GeForce 8600M GT

Graphics Card

Jan 2011

Release Date

May 2007

Vancouver

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

1000 MHz

Memory Clock

700 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

22.40GB/s

Render Config

10

Compute Units

-

SM Count

4

800

Shading Units

32

40

TMUs

16

ROPs

8

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

3.800 GPixel/s

27.00 GTexel/s

Texture Rate

7.600 GTexel/s

-

1080 GFLOPS

FP32 (float)

60.80 GFLOPS

-

Board Design

50W

TDP

20W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Granville

GPU Name

G84

Granville XT (216-0769024)

GPU Variant

NB8P-GS

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.04 billion

Transistors

0.289 billion

166 mm²

Die Size

169 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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