AMD Radeon HD 8830M vs ATI Mobility Radeon HD 3870

VS

AMD Radeon HD 8830M

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8830M and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8830M 's Advantages

Released 4 years and 10 months late

Boost Clock625MHz

More VRAM (2GB vs 512GB)

320 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 32.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8830M +89%

0.8 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon HD 8830M

VS

Mobility Radeon HD 3870

Graphics Card

Apr 2013

Release Date

Jun 2008

Solar System

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

575 MHz

Base Clock

-

625 MHz

Boost Clock

-

1000 MHz

Memory Clock

850 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

54.40GB/s

Render Config

10

Compute Units

4

-

640

Shading Units

320

40

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

10.56 GPixel/s

25.00 GTexel/s

Texture Rate

10.56 GTexel/s

-

800.0 GFLOPS

FP32 (float)

422.4 GFLOPS

50.00 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

Unknown

TDP

55W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

M88

Venus LE (216-0846030)

GPU Variant

-

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.666 billion

123 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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