Radeon R7 265 and Radeon RX 6400 - video card comparison

Radeon R7 265

Radeon RX 6400

Architecture

GCN 1.0 (2012−2020)

RDNA 2.0 (2020−2022)

GPU code name

Pitcairn

Navi 24

Market segment

Desktop

Desktop

Release date

February 2014

January 2022

Bus support

PCIe 3.0

-

Interface

PCIe 3.0 x16

PCIe 4.0 x4

Supplementary power connectors

1 x 6-pin

None

Boost clock speed

925 MHz

2321 MHz

Floating-point performance

1,894 gflops

-

Manufacturing process technology

28 nm

6 nm

Number of transistors

2,800 million

5,400 million

Pipelines / CUDA cores

1024

768

Power consumption (TDP)

150 Watt

53 Watt

Texture fill rate

59.20

111.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

4 GB

4 GB

Memory bus width

256 Bit

64 Bit

Memory clock speed

1400 MHz

16 GB/s

Memory bandwidth

179.2 GB/s

128.0 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

1x HDMI 2.1, 1x DisplayPort 1.4a

Eyefinity

1

-

HDMI

+

+

DisplayPort support

-

-

DirectX

DirectX® 12

12 Ultimate (12_2)

Mantle

-

-

OpenCL

1.2

2.2

OpenGL

4.6

4.6

Shader Model

5.1

6.6

Vulkan

-

1.3

AppAcceleration

-

-

CrossFire

1

-

DDMA audio

+

-

Enduro

-

-

FreeSync

1

-

HD3D

-

-

PowerTune

-

-

TrueAudio

-

-

ZeroCore

-

-