GeForce GTX 490 and Radeon RX 6600 XT - video card comparison

GeForce GTX 490

Radeon RX 6600 XT

Architecture

Fermi (2010−2014)

Navi / RDNA2 (2020−2022)

GPU code name

GF100

Navi 23

Market segment

Desktop

Release date

July 2021

Interface

PCIe 2.0 x16

PCIe 4.0 x8

Supplementary power connectors

2x 8-pin

1x 8-pin

Boost clock speed

2589 MHz

Core clock speed

608 MHz

1968 MHz

Manufacturing process technology

40 nm

7 nm

Number of transistors

3,100 million

11,060 million

Pipelines / CUDA cores

480

2048

Power consumption (TDP)

365 Watt

160 (TGP) Watt

Texture fill rate

36.48

331.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

1536 MB

8 GB

Memory bus width

384 Bit

128 Bit

Memory clock speed

3.4 GB/s

16000 MHz

Memory bandwidth

164.0 GB/s

256.0 GB/s

Shared memory

Display Connectors

3x DVI, 1x mini-DisplayPort

1x HDMI, 2x DisplayPort

HDMI

DirectX

12 (11_0)

12.0 Ultimate (12_2)

CUDA

2.0

OpenCL

1.1

2.1

OpenGL

4.6

Shader Model

5.1

6.5

Vulkan

N/A

1.2