AMD Radeon HD 7850M vs ATI Mobility Radeon HD 3470

VS

AMD Radeon HD 7850M

ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7850M and 256MB VRAM Mobility Radeon HD 3470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850M 's Advantages

Released 4 years and 3 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)

600 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7850M +1500%

0.864 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

Radeon HD 7850M

VS

Mobility Radeon HD 3470

Graphics Card

Apr 2012

Release Date

Jan 2008

London

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-II

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

6.400GB/s

Render Config

10

Compute Units

2

-

640

Shading Units

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

2.720 GPixel/s

27.00 GTexel/s

Texture Rate

2.720 GTexel/s

-

864.0 GFLOPS

FP32 (float)

54.40 GFLOPS

54.00 GFLOPS

FP64 (double)

-

Board Design

40W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Heathrow

GPU Name

M82

Heathrow PRO

GPU Variant

M82-ME XT (216-0707009)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.181 billion

123 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

10.1

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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