Radeon X1800 XT and Radeon RX 6600 - video card comparison

Radeon X1800 XT

Radeon RX 6600

Architecture

R500 (2005−2007)

Navi / RDNA2 (2020−2022)

GPU code name

R520

Navi 23

Market segment

Desktop

Release date

October 2005

October 2021

Interface

PCIe 1.0 x16

PCIe 4.0 x8

Supplementary power connectors

1x 6-pin

1x 8-pin

Boost clock speed

2491 MHz

Core clock speed

600 MHz

2044 MHz

Manufacturing process technology

90 nm

7 nm

Number of transistors

321 million

11,060 million

Pipelines / CUDA cores

1792

Power consumption (TDP)

113 Watt

132 Watt

Texture fill rate

9.600

279.0

Memory type

GDDR3

GDDR6

Maximum RAM amount

512 MB

8 GB

Memory bus width

256 Bit

128 Bit

Memory clock speed

1400 MHz

14500 MHz

Memory bandwidth

44.8 GB/s

224.0 GB/s

Shared memory

Display Connectors

2x DVI, 1x S-Video

1x HDMI, 3x DisplayPort

HDMI

DirectX

9.0c (9_3)

12.0 Ultimate (12_2)

OpenCL

N/A

2.1

OpenGL

2.0

4.6

Shader Model

3.0

6.5

Vulkan

N/A

1.2