Radeon RX 590 GME and Radeon RX 6600 XT - video card comparison
Radeon RX 590 GME
Radeon RX 6600 XT
Architecture
GCN 4.0 (2016−2020)
Navi / RDNA2 (2020−2022)
GPU code name
Polaris 20
Navi 23
Market segment
Desktop
Desktop
Release date
March 2020
July 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 8-pin
1x 8-pin
Boost clock speed
1420 MHz
2589 MHz
Core clock speed
-
1968 MHz
Manufacturing process technology
14 nm
7 nm
Number of transistors
5,700 million
11,060 million
Pipelines / CUDA cores
2304
2048
Power consumption (TDP)
175 Watt
160 (TGP) Watt
Texture fill rate
204.5
331.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
8 GB/s
16000 MHz
Memory bandwidth
256.0 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI 2.0b, 3x DisplayPort 1.4a
1x HDMI, 2x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12.0 Ultimate (12_2)
OpenCL
2.1
2.1
OpenGL
4.6
4.6
Shader Model
6.7
6.5
Vulkan
1.3
1.2