ATI Mobility Radeon HD 4850 X2 vs ATI Mobility Radeon HD 3470

VS

ATI Mobility Radeon HD 4850 X2

ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4850 X2 and 256MB VRAM Mobility Radeon HD 3470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4850 X2 's Advantages

Released 1 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (89.60GB/s vs 6.400GB/s)

760 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4850 X2 +1381%

0.8 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

Mobility Radeon HD 4850 X2

VS

Mobility Radeon HD 3470

Graphics Card

Jan 2009

Release Date

Jan 2008

M9x

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

700 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

89.60GB/s

Bandwidth

6.400GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

8.000 GPixel/s

Pixel Rate

2.720 GPixel/s

20.00 GTexel/s

Texture Rate

2.720 GTexel/s

-

800.0 GFLOPS

FP32 (float)

54.40 GFLOPS

160.0 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

M98

GPU Name

M82

M98 L2 (216-0732019)

GPU Variant

M82-ME XT (216-0707009)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.181 billion

256 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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