Radeon RX 6600M and Radeon RX 7900 XT - video card comparison
Passmark - benchmark score Radeon RX 6600M vs Radeon RX 7900 XT
Radeon RX 6600M
14089
Radeon RX 7900 XT
29720
Radeon RX 6600M
Radeon RX 7900 XT
Architecture
RDNA 2 (2020−2022)
RDNA 3
GPU code name
R21M-E65-70
Navi 31 XT
Market segment
Laptop
Desktop
Release date
September 2020
November 2022
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
None
2x 8-pin
Boost clock speed
2177 MHz
2000 MHz
Core clock speed
2068 MHz
-
Manufacturing process technology
7 nm
5 nm
Number of transistors
11,060 million
57,700 million
Pipelines / CUDA cores
1792
5376
Power consumption (TDP)
100 Watt (50 - 100 Watt TGP)
315 Watt
Texture fill rate
235.8
804.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
8 GB
20 GB
Memory bus width
128 Bit
320 Bit
Memory clock speed
14000 MHz
20000 MHz
Memory bandwidth
256.0 GB/s
800.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
-
+
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
2.1
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3