Radeon RX 6800 XT and GeForce RTX 4090 - video card comparison
Passmark - benchmark score Radeon RX 6800 XT vs GeForce RTX 4090
Radeon RX 6800 XT
25788
GeForce RTX 4090
39777
Radeon RX 6800 XT
GeForce RTX 4090
Architecture
Navi / RDNA2 (2020−2022)
Ada Lovelace
GPU code name
Navi 21
AD102-300-A1
Market segment
Desktop
Desktop
Release date
November 2020
September 2022
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 8-pin
1x 16-pin
Boost clock speed
2250 MHz
2520 MHz
Core clock speed
1825 MHz
2235 MHz
Manufacturing process technology
7 nm
5 nm
Number of transistors
26,800 million
76,300 million
Pipelines / CUDA cores
4608
16384
Power consumption (TDP)
300 Watt
450 Watt
Texture fill rate
648.0
1,290
Memory type
GDDR6
GDDR6X
Maximum RAM amount
16 GB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
16000 MHz
21000 MHz
Memory bandwidth
512.0 GB/s
1,008 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.6
Vulkan
1.2
1.3