AMD Radeon HD 8830M vs ATI Mobility Radeon HD 4870 X2

VS

AMD Radeon HD 8830M

ATI Mobility Radeon HD 4870 X2

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8830M and 1024MB VRAM Mobility Radeon HD 4870 X2 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 3 months late

Boost Clock625MHz

More VRAM (2GB vs 1024GB)

ATI Mobility Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 32.00GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8830M

0.8 TFLOPS

Mobility Radeon HD 4870 X2 +10%

0.88 TFLOPS

Radeon HD 8830M

VS

Mobility Radeon HD 4870 X2

Graphics Card

Apr 2013

Release Date

Jan 2009

Solar System

Generation

M9x

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

700 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

89.60GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

800

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

8.800 GPixel/s

25.00 GTexel/s

Texture Rate

22.00 GTexel/s

-

800.0 GFLOPS

FP32 (float)

880.0 GFLOPS

50.00 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Venus

GPU Name

M98

Venus LE (216-0846030)

GPU Variant

M98 XT L2 (216-0732023)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.956 billion

123 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5 (5.1)

Shader Model

4.1

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