ATI Mobility Radeon HD 4850 Mac Edition vs ATI Mobility Radeon HD 4650

VS

ATI Mobility Radeon HD 4850 Mac Edition ATI Mobility Radeon HD 4650

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4850 Mac Edition and 512MB VRAM Mobility Radeon HD 4650 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 7 months late

Larger VRAM bandwidth (54.40GB/s vs 19.20GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4850 Mac Edition +151%

0.804 TFLOPS

Mobility Radeon HD 4650

0.32 TFLOPS

Mobility Radeon HD 4850 Mac Edition

VS

Mobility Radeon HD 4650

Graphics Card

Aug 2009

Release Date

Jan 2009

M9x

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

850 MHz

Memory Clock

600 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

256bit

Memory Bus

128bit

54.40GB/s

Bandwidth

19.20GB/s

Render Config

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

8.048 GPixel/s

Pixel Rate

4.000 GPixel/s

20.12 GTexel/s

Texture Rate

16.00 GTexel/s

-

FP16 (half)

-

804.8 GFLOPS

FP32 (float)

320.0 GFLOPS

161.0 GFLOPS

FP64 (double)

-

Graphics Processor

M98

GPU Name

M96

M98 L2 (216-0732019)

GPU Variant

-

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.514 billion

256 mm²

Die Size

146 mm²

Board Design

Unknown

TDP

35W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.1

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