ATI Mobility Radeon HD 3450 vs ATI Mobility Radeon HD 4850 Mac Edition

VS

ATI Mobility Radeon HD 3450

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 3450 and 512MB VRAM Mobility Radeon HD 4850 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

Released 1 years and 7 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (54.40GB/s vs 6.400GB/s)

760 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3450

0.04 TFLOPS

Mobility Radeon HD 4850 Mac Edition +1910%

0.804 TFLOPS

Mobility Radeon HD 3450

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Jan 2008

Release Date

Aug 2009

M8x

Generation

M9x

Mobile

Type

Mobile

MXM-II

Bus Interface

MXM-B (3.0)

Clock Speeds

-

400 MHz

Memory Clock

850 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

54.40GB/s

Render Config

2

Compute Units

10

-

40

Shading Units

800

4

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

8.048 GPixel/s

2.000 GTexel/s

Texture Rate

20.12 GTexel/s

-

40.00 GFLOPS

FP32 (float)

804.8 GFLOPS

-

FP64 (double)

161.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

M82

GPU Name

M98

M82-SCE XT (216-0707011)

GPU Variant

M98 L2 (216-0732019)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.181 billion

Transistors

0.956 billion

67 mm²

Die Size

256 mm²

Graphics Features

10.1

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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