ATI Mobility Radeon HD 4860 vs ATI Mobility Radeon HD 4850 Mac Edition

VS

ATI Mobility Radeon HD 4860

ATI Mobility Radeon HD 4850 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4860 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 4860 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 54.40GB/s)

ATI Mobility Radeon HD 4850 Mac Edition 's Advantages

160 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4860 +3%

0.832 TFLOPS

Mobility Radeon HD 4850 Mac Edition

0.804 TFLOPS

Mobility Radeon HD 4860

VS

Mobility Radeon HD 4850 Mac Edition

Graphics Card

Mar 2009

Release Date

Aug 2009

M9x

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

54.40GB/s

Render Config

8

Compute Units

10

-

640

Shading Units

800

32

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

10.40 GPixel/s

Pixel Rate

8.048 GPixel/s

20.80 GTexel/s

Texture Rate

20.12 GTexel/s

-

832.0 GFLOPS

FP32 (float)

804.8 GFLOPS

166.4 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

M97

GPU Name

M98

M97 M2 XT (216-0731000)

GPU Variant

M98 L2 (216-0732019)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.826 billion

Transistors

0.956 billion

137 mm²

Die Size

256 mm²

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

-

4.1

Shader Model

4.1

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