Radeon RX 6600 XT and Arc A780 - video card comparison
Radeon RX 6600 XT
Arc A780
Architecture
Navi / RDNA2 (2020−2022)
Generation 12.7 (2022)
GPU code name
Navi 23
DG2-512
Market segment
Desktop
Desktop
Release date
July 2021
2022
Interface
PCIe 4.0 x8
PCIe 4.0 x16
Supplementary power connectors
1x 8-pin
2x 8-pin
Boost clock speed
2589 MHz
2200 MHz
Core clock speed
1968 MHz
-
Manufacturing process technology
7 nm
6 nm
Number of transistors
11,060 million
21,700 million
Pipelines / CUDA cores
2048
4096
Power consumption (TDP)
160 (TGP) Watt
200 Watt
Texture fill rate
331.4
563.2
Memory type
GDDR6
GDDR6X
Maximum RAM amount
8 GB
16 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
16000 MHz
17.5 GB/s
Memory bandwidth
256.0 GB/s
559.6 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 2x DisplayPort
1x HDMI 2.1, 3x DisplayPort 2.0
HDMI
+
+
DirectX
12.0 Ultimate (12_2)
12 Ultimate (12_2)
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.6
Vulkan
1.2
1.3