Radeon RX 6600 XT and Radeon RX 7900 GRE - video card comparison
Passmark - benchmark score Radeon RX 6600 XT vs Radeon RX 7900 GRE
Radeon RX 6600 XT
16985
Radeon RX 7900 GRE
27403
Radeon RX 6600 XT
Radeon RX 7900 GRE
Architecture
Navi / RDNA2 (2020−2022)
RDNA 3
GPU code name
Navi 23
Navi 31
Market segment
Desktop
Desktop
Release date
July 2021
July 2023
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
1x 8-pin
2x 8-pin
Boost clock speed
2589 MHz
2245 MHz
Core clock speed
1968 MHz
-
Manufacturing process technology
7 nm
5 nm
Number of transistors
11,060 million
57,700 million
Pipelines / CUDA cores
2048
5120
Power consumption (TDP)
160 (TGP) Watt
260 Watt
Texture fill rate
331.4
718.4
Memory type
GDDR6
GDDR6
Maximum RAM amount
8 GB
16 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
16000 MHz
18000 MHz
Memory bandwidth
256.0 GB/s
576.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
+
+
DirectX
12.0 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
2.2
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3