ATI Mobility Radeon HD 5870 vs ATI Mobility Radeon HD 3870

VS

ATI Mobility Radeon HD 5870 ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 5870 and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 5870 's Advantages

Released 1 years and 7 months late

More VRAM (1024GB vs 512GB)

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

480 additional rendering cores

Lower TDP (50W vs 55W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 5870 +165%

1.12 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Mobility Radeon HD 5870

VS

Mobility Radeon HD 3870

Graphics Card

Jan 2010

Release Date

Jun 2008

Manhattan

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

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

-

SM Count

-

10

Compute Units

4

800

Shading Units

320

40

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

11.20 GPixel/s

Pixel Rate

10.56 GPixel/s

28.00 GTexel/s

Texture Rate

10.56 GTexel/s

-

FP16 (half)

-

1120 GFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Graphics Processor

Broadway

GPU Name

M88

Broadway XT (216-0769008)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.666 billion

166 mm²

Die Size

192 mm²

Board Design

50W

TDP

55W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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