Radeon RX 6900 XT and Radeon RX 6600 XT - video card comparison
Passmark - benchmark score Radeon RX 6900 XT vs Radeon RX 6600 XT
Radeon RX 6900 XT
27642
Radeon RX 6600 XT
16985
Radeon RX 6900 XT
Radeon RX 6600 XT
Architecture
Navi / RDNA2 (2020−2022)
Navi / RDNA2 (2020−2022)
GPU code name
Navi 21
Navi 23
Market segment
Desktop
Desktop
Release date
December 2020
July 2021
Interface
PCIe 4.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 8-pin
1x 8-pin
Boost clock speed
2250 MHz
2589 MHz
Core clock speed
1825 MHz
1968 MHz
Manufacturing process technology
7 nm
7 nm
Number of transistors
26,800 million
11,060 million
Pipelines / CUDA cores
5120
2048
Power consumption (TDP)
300 Watt
160 (TGP) Watt
Texture fill rate
720.0
331.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
16 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
16000 MHz
16000 MHz
Memory bandwidth
512.0 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort, 1x USB Type-C
1x HDMI, 2x DisplayPort
HDMI
+
+
DirectX
12 Ultimate (12_2)
12.0 Ultimate (12_2)
OpenCL
2.1
2.1
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2
1.2