AMD Radeon RX 580X Mobile vs AMD Radeon RX 460 Mobile

VS

AMD Radeon RX 580X Mobile

AMD Radeon RX 460 Mobile

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 4GB VRAM Radeon RX 460 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X Mobile 's Advantages

Released 1 years and 8 months late

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 80.00GB/s)

1408 additional rendering cores

AMD Radeon RX 460 Mobile 's Advantages

Boost Clock has increased by 10% (1180MHz vs 1077MHz)

Lower TDP (55W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +134%

4.963 TFLOPS

Radeon RX 460 Mobile

2.115 TFLOPS

Radeon RX 580X Mobile

VS

Radeon RX 460 Mobile

Graphics Card

Apr 2018

Release Date

Aug 2016

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

1000 MHz

Base Clock

1000 MHz

1077 MHz

Boost Clock

1180 MHz

2000 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

80.00GB/s

Render Config

36

Compute Units

14

-

2304

Shading Units

896

144

TMUs

56

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

18.88 GPixel/s

155.1 GTexel/s

Texture Rate

66.08 GTexel/s

4.963 TFLOPS

FP16 (half)

2.115 TFLOPS

4.963 TFLOPS

FP32 (float)

2.115 TFLOPS

310.2 GFLOPS

FP64 (double)

132.2 GFLOPS

Board Design

100W

TDP

55W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

Baffin

Polaris 20M XT

GPU Variant

Baffin XT

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

5.7 billion

Transistors

3 billion

232 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

6.4

Shader Model

6.4

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