ATI Mobility Radeon HD 3470 vs AMD Radeon HD 7850M

VS

ATI Mobility Radeon HD 3470

AMD Radeon HD 7850M

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 3470 and 2GB VRAM Radeon HD 7850M 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)

Mobility Radeon HD 3470

0.054 TFLOPS

Radeon HD 7850M +1500%

0.864 TFLOPS

Mobility Radeon HD 3470

VS

Radeon HD 7850M

Graphics Card

Jan 2008

Release Date

Apr 2012

M8x

Generation

London

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

64.00GB/s

Render Config

2

Compute Units

10

-

40

Shading Units

640

4

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.720 GPixel/s

Pixel Rate

10.80 GPixel/s

2.720 GTexel/s

Texture Rate

27.00 GTexel/s

-

54.40 GFLOPS

FP32 (float)

864.0 GFLOPS

-

FP64 (double)

54.00 GFLOPS

Board Design

Unknown

TDP

40W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

M82

GPU Name

Heathrow

M82-ME XT (216-0707009)

GPU Variant

Heathrow PRO

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.181 billion

Transistors

1.5 billion

67 mm²

Die Size

123 mm²

Graphics Features

10.1

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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