Radeon RX 7900 XTX and GeForce RTX 4090 Mobile - video card comparison
Radeon RX 7900 XTX
GeForce RTX 4090 Mobile
Architecture
RDNA 3
Ada Lovelace
GPU code name
Navi 31 XTX
GN21-X11
Market segment
Desktop
Laptop
Release date
November 2022
January 2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
-
Boost clock speed
2270 MHz
2040 MHz
Manufacturing process technology
5 nm
5 nm
Number of transistors
57,700 million
45,900 million
Pipelines / CUDA cores
6144
9728
Power consumption (TDP)
355 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
959.6
515.3
Memory type
GDDR6
GDDR6
Maximum RAM amount
24 GB
16 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
20000 MHz
20000 MHz
Memory bandwidth
960.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
Portable Device Dependent
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.7
6.7
Vulkan
1.3
1.3