AMD Radeon RX 580 Mobile vs ATI Mobility Radeon HD 4850 X2

VS

AMD Radeon RX 580 Mobile

ATI Mobility Radeon HD 4850 X2

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580 Mobile 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 RX 580 Mobile 's Advantages

Released 8 years and 3 months late

Boost Clock1077MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 89.60GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580 Mobile +520%

4.963 TFLOPS

Mobility Radeon HD 4850 X2

0.8 TFLOPS

Radeon RX 580 Mobile

VS

Mobility Radeon HD 4850 X2

Graphics Card

Apr 2017

Release Date

Jan 2009

Mobility Radeon

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1077 MHz

Boost Clock

-

2000 MHz

Memory Clock

700 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

89.60GB/s

Render Config

36

Compute Units

10

-

2304

Shading Units

800

144

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

8.000 GPixel/s

155.1 GTexel/s

Texture Rate

20.00 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

800.0 GFLOPS

310.2 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

M98

Polaris 20M XT

GPU Variant

M98 L2 (216-0732019)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

5.7 billion

Transistors

0.956 billion

232 mm²

Die Size

256 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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