ATI Mobility Radeon HD 3870 vs ATI Mobility Radeon HD 4530

VS

ATI Mobility Radeon HD 3870

ATI Mobility Radeon HD 4530

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 512MB VRAM Mobility Radeon HD 4530 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 11.20GB/s)

240 additional rendering cores

ATI Mobility Radeon HD 4530 's Advantages

Released 7 months late

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870 +427%

0.422 TFLOPS

Mobility Radeon HD 4530

0.08 TFLOPS

Mobility Radeon HD 3870

VS

Mobility Radeon HD 4530

Graphics Card

Jun 2008

Release Date

Jan 2009

M8x

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-II

Clock Speeds

-

850 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

256bit

Memory Bus

64bit

54.40GB/s

Bandwidth

11.20GB/s

Render Config

4

Compute Units

1

-

320

Shading Units

80

16

TMUs

8

16

ROPs

4

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

64 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

2.000 GPixel/s

10.56 GTexel/s

Texture Rate

4.000 GTexel/s

-

422.4 GFLOPS

FP32 (float)

80.00 GFLOPS

84.48 GFLOPS

FP64 (double)

-

Board Design

55W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

M88

GPU Name

M92

-

GPU Variant

M92-M2 A11 (216-0728000)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.666 billion

Transistors

0.242 billion

192 mm²

Die Size

73 mm²

Graphics Features

10.1 (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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