AMD Radeon HD 6870M vs ATI Mobility Radeon HD 4570

VS

AMD Radeon HD 6870M

ATI Mobility Radeon HD 4570

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 512MB VRAM Mobility Radeon HD 4570 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages

Released 2 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

720 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M +900%

1.08 TFLOPS

Mobility Radeon HD 4570

0.108 TFLOPS

Radeon HD 6870M

VS

Mobility Radeon HD 4570

Graphics Card

Jan 2011

Release Date

Jan 2009

Vancouver

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

12.80GB/s

Render Config

10

Compute Units

1

-

800

Shading Units

80

40

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

64 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

2.720 GPixel/s

27.00 GTexel/s

Texture Rate

5.440 GTexel/s

-

1080 GFLOPS

FP32 (float)

108.8 GFLOPS

-

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Granville

GPU Name

M92

Granville XT (216-0769024)

GPU Variant

M92-M2 XT A11 (216-0728006)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.242 billion

166 mm²

Die Size

73 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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