Radeon RX 7800 XT and GeForce RTX 4090 Mobile - video card comparison
Radeon RX 7800 XT
GeForce RTX 4090 Mobile
Architecture
RDNA 3
Ada Lovelace
GPU code name
Navi 32
GN21-X11
Market segment
Desktop
Laptop
Release date
August 2023
January 2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
-
Boost clock speed
2430 MHz
2040 MHz
Manufacturing process technology
5 nm
5 nm
Number of transistors
28,100 million
45,900 million
Pipelines / CUDA cores
3840
9728
Power consumption (TDP)
263 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
604.8
515.3
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
19500 MHz
20000 MHz
Memory bandwidth
576.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1a, 3x DisplayPort 2.1
Portable Device Dependent
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.2
3.0
OpenGL
4.6
4.6
Shader Model
6.7
6.7
Vulkan
1.3
1.3