AMD Radeon R9 M280X vs AMD Radeon HD 8850M

VS

AMD Radeon R9 M280X

AMD Radeon HD 8850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M280X and 2GB VRAM Radeon HD 8850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M280X 's Advantages

Released 1 years and 10 months late

Boost Clock has increased by 60% (1000MHz vs 625MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (88.00GB/s vs 64.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M280X +124%

1.792 TFLOPS

Radeon HD 8850M

0.8 TFLOPS

Radeon R9 M280X

VS

Radeon HD 8850M

Graphics Card

Feb 2015

Release Date

Apr 2013

Gem System

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

575 MHz

1000 MHz

Boost Clock

625 MHz

1375 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

88.00GB/s

Bandwidth

64.00GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

640

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

10.00 GPixel/s

56.00 GTexel/s

Texture Rate

25.00 GTexel/s

-

1.792 TFLOPS

FP32 (float)

800.0 GFLOPS

112.0 GFLOPS

FP64 (double)

50.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Saturn

GPU Name

Venus

Saturn XT (216-0843024)

GPU Variant

Venus PRO (216-0846009)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

1.5 billion

160 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

6.5

Shader Model

6.5 (5.1)

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