AMD Radeon R9 M280X vs ATI Mobility Radeon HD 3850

VS

AMD Radeon R9 M280X

ATI Mobility Radeon HD 3850

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M280X and 512MB VRAM Mobility Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M280X 's Advantages

Released 6 years and 8 months late

Boost Clock1000MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (88.00GB/s vs 48.00GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M280X +383%

1.792 TFLOPS

Mobility Radeon HD 3850

0.371 TFLOPS

Radeon R9 M280X

VS

Mobility Radeon HD 3850

Graphics Card

Feb 2015

Release Date

Jun 2008

Gem System

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1375 MHz

Memory Clock

750 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

88.00GB/s

Bandwidth

48.00GB/s

Render Config

14

Compute Units

4

-

896

Shading Units

320

56

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

9.280 GPixel/s

56.00 GTexel/s

Texture Rate

9.280 GTexel/s

-

1.792 TFLOPS

FP32 (float)

371.2 GFLOPS

112.0 GFLOPS

FP64 (double)

74.24 GFLOPS

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Saturn

GPU Name

M88

Saturn XT (216-0843024)

GPU Variant

-

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.666 billion

160 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.2.170

Vulkan

N/A

-

6.5

Shader Model

4.1

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