Radeon RX 7800 XT and Radeon RX 7990 XTX - video card comparison
Radeon RX 7800 XT
Radeon RX 7990 XTX
Architecture
RDNA 3
RDNA 3.0 (2022)
GPU code name
Navi 32
Navi 31
Market segment
Desktop
Desktop
Release date
August 2023
2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
3x 8-pin
Boost clock speed
2430 MHz
3599 MHz
Manufacturing process technology
5 nm
5 nm
Number of transistors
28,100 million
57,700 million
Pipelines / CUDA cores
3840
6144
Power consumption (TDP)
263 Watt
405 Watt
Texture fill rate
604.8
1,382
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
19500 MHz
24 GB/s
Memory bandwidth
576.0 GB/s
1,152 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.1a, 3x DisplayPort 2.1
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.2
2.2
OpenGL
4.6
4.6
Shader Model
6.7
6.7
Vulkan
1.3
1.3