AMD Radeon RX 580X Mobile vs AMD Radeon R7 M340

VS

AMD Radeon RX 580X Mobile

AMD Radeon R7 M340

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 1024MB VRAM Radeon R7 M340 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 2 years and 4 months late

Boost Clock has increased by 51% (1077MHz vs 715MHz)

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 16.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +804%

4.963 TFLOPS

Radeon R7 M340

0.549 TFLOPS

Radeon RX 580X Mobile

VS

Radeon R7 M340

Graphics Card

Apr 2018

Release Date

Dec 2015

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

1000 MHz

Base Clock

620 MHz

1077 MHz

Boost Clock

715 MHz

2000 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

256.0GB/s

Bandwidth

16.00GB/s

Render Config

36

Compute Units

6

-

2304

Shading Units

384

144

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

5.720 GPixel/s

155.1 GTexel/s

Texture Rate

17.16 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

549.1 GFLOPS

310.2 GFLOPS

FP64 (double)

34.32 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

Opal

Polaris 20M XT

GPU Variant

Opal PRO

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

0.95 billion

232 mm²

Die Size

77 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5 (5.1)

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