AMD Radeon HD 8870M vs AMD Radeon HD 6750M Mac Edition

VS

AMD Radeon HD 8870M

AMD Radeon HD 6750M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M 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 8870M 's Advantages

Released 2 years late

Boost Clock775MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (72.00GB/s vs 50.82GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870M +72%

0.992 TFLOPS

Radeon HD 6750M Mac Edition

0.574 TFLOPS

Radeon HD 8870M

VS

Radeon HD 6750M Mac Edition

Graphics Card

Apr 2013

Release Date

Apr 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

725 MHz

Base Clock

-

775 MHz

Boost Clock

-

1125 MHz

Memory Clock

794 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

50.82GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

480

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

4.784 GPixel/s

31.00 GTexel/s

Texture Rate

14.35 GTexel/s

-

992.0 GFLOPS

FP32 (float)

574.1 GFLOPS

62.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

Whistler

Venus XT (216-0846000)

GPU Variant

Whistler PRO (216-0810005)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

0.716 billion

123 mm²

Die Size

104 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

5.0

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