Radeon RX 6600 and GeForce RTX 4090 Mobile - video card comparison
Radeon RX 6600
GeForce RTX 4090 Mobile
Architecture
Navi / RDNA2 (2020−2022)
Ada Lovelace
GPU code name
Navi 23
GN21-X11
Market segment
Desktop
Laptop
Release date
October 2021
January 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
1x 8-pin
-
Boost clock speed
2491 MHz
2040 MHz
Core clock speed
2044 MHz
-
Manufacturing process technology
7 nm
5 nm
Number of transistors
11,060 million
45,900 million
Pipelines / CUDA cores
1792
9728
Power consumption (TDP)
132 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
279.0
515.3
Memory type
GDDR6
GDDR6
Maximum RAM amount
8 GB
16 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
14500 MHz
20000 MHz
Memory bandwidth
224.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
Portable Device Dependent
HDMI
+
-
DirectX
12.0 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3