Radeon R9 390 X2 and GeForce G105M - video card comparison

Radeon R9 390 X2

GeForce G105M

Architecture

GCN 2.0 (2013−2017)

Tesla 2.0 (2007−2013)

GPU code name

Grenada

GT218

Market segment

Desktop

Laptop

Release date

September 2015

July 2009

Bus support

-

PCI-E 2.0

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

4x 8-pin

-

Core clock speed

1000 MHz

500 MHz

CUDA cores

-

8

Floating-point performance

2x 5,120 gflops

25.6 gflops

Gigaflops

-

38

Manufacturing process technology

28 nm

40 nm

Number of transistors

6,200 million

260 million

Pipelines / CUDA cores

2560

16

Power consumption (TDP)

580 Watt

14 Watt

Texture fill rate

160.0

4.000

Memory type

GDDR5

GDDR3

Maximum RAM amount

8 GB

Up to 512 MB

Memory bus width

512 Bit

64 Bit

Memory clock speed

5400 MHz

500 (DDR2)/700 (GDDR3) MHz

Memory bandwidth

345.6 GB/s

8 (DDR2)/11 (GDDR3)

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

VGADual Link DVISingle Link DVIDisplayPortHDMI

Multi monitor support

-

+

HDMI

+

+

Maximum VGA resolution

-

2048x1536

DirectX

12 (12_0)

11.1 (10_1)

CUDA

-

+

OpenCL

2.0

1.1

OpenGL

4.6

2.1

Shader Model

6.3

4.1

Vulkan

1.2.131

N/A

Power management

-

8.0