AMD Radeon HD 7450A vs ATI Mobility Radeon HD 4850 Mac Edition

VS

AMD Radeon HD 7450A

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 7450A 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

AMD Radeon HD 7450A 's Advantages

Released 2 years and 5 months late

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 12.80GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7450A

0.2 TFLOPS

Mobility Radeon HD 4850 Mac Edition +302%

0.804 TFLOPS

Radeon HD 7450A

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Jan 2012

Release Date

Aug 2009

All-In-One

Generation

M9x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

800 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

12.80GB/s

Bandwidth

54.40GB/s

Render Config

2

Compute Units

10

-

160

Shading Units

800

8

TMUs

40

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

8.048 GPixel/s

5.000 GTexel/s

Texture Rate

20.12 GTexel/s

-

200.0 GFLOPS

FP32 (float)

804.8 GFLOPS

-

FP64 (double)

161.0 GFLOPS

Board Design

25W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Caicos

GPU Name

M98

-

GPU Variant

M98 L2 (216-0732019)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.956 billion

67 mm²

Die Size

256 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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