Radeon RX 6500 XT and GeForce GTX 660 OEM - video card comparison

Radeon RX 6500 XT

GeForce GTX 660 OEM

Architecture

Navi / RDNA2 (2020−2022)

Kepler (2012−2018)

GPU code name

Navi 24

GK104

Market segment

Desktop

Release date

January 2022

August 2012

Interface

PCIe 4.0 x4

PCIe 3.0 x16

Supplementary power connectors

1x 6-pin

Boost clock speed

2815 MHz

888 MHz

Core clock speed

2610 MHz

823 MHz

Floating-point performance

2,046 gflops

Manufacturing process technology

7 nm

28 nm

Number of transistors

5,400 million

3,540 million

Pipelines / CUDA cores

1024

1152

Power consumption (TDP)

107 Watt

130 Watt

Texture fill rate

180.2

85.25

Memory type

GDDR6

GDDR5

Maximum RAM amount

8 GB

2 GB

Memory bus width

64 Bit

256 Bit

Memory clock speed

18000 MHz

5600 MHz

Memory bandwidth

143.9 GB/s

179.2 GB/s

Shared memory

Display Connectors

1x HDMI 2.1, 1x DisplayPort 1.4a

2x DVI, 1x HDMI, 1x DisplayPort

HDMI

DirectX

12 Ultimate (12_2)

12 (11_0)

CUDA

3.0

OpenCL

2.2

1.2

OpenGL

4.6

Shader Model

6.6

5.1

Vulkan

1.3

1.1.126