Riva 128ZX and Radeon RX 6600 XT - video card comparison

Riva 128ZX

Radeon RX 6600 XT

Architecture

Navi / RDNA2 (2020−2022)

GPU code name

NV3

Navi 23

Market segment

Desktop

Release date

February 1998

July 2021

Interface

AGP 2x

PCIe 4.0 x8

Supplementary power connectors

None

1x 8-pin

Boost clock speed

2589 MHz

Core clock speed

100 MHz

1968 MHz

Manufacturing process technology

350 nm

7 nm

Number of transistors

4 million

11,060 million

Pipelines / CUDA cores

2048

Power consumption (TDP)

160 (TGP) Watt

Texture fill rate

0.1

331.4

Memory type

SDR

GDDR6

Maximum RAM amount

8 MB

8 GB

Memory bus width

128 Bit

Memory clock speed

100 MHz

16000 MHz

Memory bandwidth

1.6 GB/s

256.0 GB/s

Shared memory

Display Connectors

1x VGA

1x HDMI, 2x DisplayPort

HDMI

DirectX

5.0

12.0 Ultimate (12_2)

OpenCL

N/A

2.1

OpenGL

1.0

4.6

Shader Model

6.5

Vulkan

N/A

1.2