Radeon RX 6600 XT and GeForce RTX 4090 - video card comparison
Passmark - benchmark score Radeon RX 6600 XT vs GeForce RTX 4090
Radeon RX 6600 XT
16985
GeForce RTX 4090
39777
Radeon RX 6600 XT
GeForce RTX 4090
Architecture
Navi / RDNA2 (2020−2022)
Ada Lovelace
GPU code name
Navi 23
AD102-300-A1
Market segment
Desktop
Desktop
Release date
July 2021
September 2022
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
1x 8-pin
1x 16-pin
Boost clock speed
2589 MHz
2520 MHz
Core clock speed
1968 MHz
2235 MHz
Manufacturing process technology
7 nm
5 nm
Number of transistors
11,060 million
76,300 million
Pipelines / CUDA cores
2048
16384
Power consumption (TDP)
160 (TGP) Watt
450 Watt
Texture fill rate
331.4
1,290
Memory type
GDDR6
GDDR6X
Maximum RAM amount
8 GB
24 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
16000 MHz
21000 MHz
Memory bandwidth
256.0 GB/s
1,008 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort
1x HDMI 2.1, 3x DisplayPort 1.4a
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
6.6
Vulkan
1.2
1.3