AMD Radeon R9 M390 Mac Edition vs ATI Mobility Radeon HD 4850 X2

VS

AMD Radeon R9 M390 Mac Edition ATI Mobility Radeon HD 4850 X2

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 1024MB VRAM Mobility Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 6 years and 4 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (174.7GB/s vs 89.60GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +145%

1.962 TFLOPS

Mobility Radeon HD 4850 X2

0.8 TFLOPS

Radeon R9 M390 Mac Edition

VS

Mobility Radeon HD 4850 X2

Graphics Card

May 2015

Release Date

Jan 2009

Crystal System

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1365 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

89.60GB/s

Render Config

-

SM Count

-

16

Compute Units

10

1024

Shading Units

800

64

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

30.66 GPixel/s

Pixel Rate

8.000 GPixel/s

61.31 GTexel/s

Texture Rate

20.00 GTexel/s

-

FP16 (half)

-

1.962 TFLOPS

FP32 (float)

800.0 GFLOPS

122.6 GFLOPS

FP64 (double)

160.0 GFLOPS

Graphics Processor

Pitcairn

GPU Name

M98

Pitcairn PRO (215-0828062)

GPU Variant

M98 L2 (216-0732019)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.956 billion

212 mm²

Die Size

256 mm²

Board Design

80W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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