Radeon RX 590 and Radeon RX 6600 XT - video card comparison
Passmark - benchmark score Radeon RX 590 vs Radeon RX 6600 XT
Radeon RX 590
9695
Radeon RX 6600 XT
16985
Radeon RX 590
Radeon RX 6600 XT
Architecture
Polaris (2016−2019)
Navi / RDNA2 (2020−2022)
GPU code name
Polaris 30
Navi 23
Market segment
Desktop
Desktop
Release date
November 2018
July 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 8-pin
1x 8-pin
Boost clock speed
1545 MHz
2589 MHz
Core clock speed
1469 MHz
1968 MHz
Manufacturing process technology
12 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
222.5
331.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
8000 MHz
16000 MHz
Memory bandwidth
256.0 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x HDMI, 2x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12.0 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.4
6.5
Vulkan
1.2.131
1.2
FreeSync
+
-