Radeon R7 340 OEM and Radeon RX 580X Mobile - video card comparison

Radeon R7 340 OEM

Radeon RX 580X Mobile

Architecture

GCN 1.0 (2012−2020)

Polaris (2016−2019)

GPU code name

Oland

Polaris

Market segment

Desktop

Laptop

Release date

May 2015

January 2019

Interface

PCIe 3.0 x8

MXM-B (3.0)

Supplementary power connectors

None

Boost clock speed

780 MHz

1340 MHz

Core clock speed

730 MHz

Floating-point performance

599.0 gflops

Manufacturing process technology

28 nm

14 nm

Number of transistors

950 million

5,700 million

Pipelines / CUDA cores

384

2304

Power consumption (TDP)

50 Watt

65-110 Watt

Texture fill rate

18.72

155.1

Memory type

DDR3

GDDR5

Maximum RAM amount

2 GB

8 GB

Memory bus width

128 Bit

256 Bit

Memory clock speed

1800 MHz

8000 MHz

Memory bandwidth

28.8 GB/s

256.0 GB/s

Shared memory

Display Connectors

1x DVI, 1x HDMI, 1x VGA

No outputs

HDMI

DirectX

12 (11_1)

12 (12_0)

OpenCL

1.2

2.0

OpenGL

4.6

Shader Model

5.1

6.4

Vulkan

1.2.131