AMD Radeon HD 6870M vs AMD Radeon HD 6750M Mac Edition

VS

AMD Radeon HD 6870M

AMD Radeon HD 6750M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 512MB VRAM Radeon HD 6750M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 50.82GB/s)

320 additional rendering cores

AMD Radeon HD 6750M Mac Edition 's Advantages

Lower TDP (35W vs 50W)

Score

Benchmark

FP32 (float)

Radeon HD 6870M +88%

1.08 TFLOPS

Radeon HD 6750M Mac Edition

0.574 TFLOPS

Radeon HD 6870M

VS

Radeon HD 6750M Mac Edition

Graphics Card

Jan 2011

Release Date

Apr 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

794 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

50.82GB/s

Render Config

10

Compute Units

6

-

800

Shading Units

480

40

TMUs

24

16

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

4.784 GPixel/s

27.00 GTexel/s

Texture Rate

14.35 GTexel/s

-

1080 GFLOPS

FP32 (float)

574.1 GFLOPS

-

Board Design

50W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Granville

GPU Name

Whistler

Granville XT (216-0769024)

GPU Variant

Whistler PRO (216-0810005)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

0.716 billion

166 mm²

Die Size

104 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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