Radeon R9 390 X2 and Radeon RX 6700 XT - video card comparison
Radeon R9 390 X2
Radeon RX 6700 XT
Architecture
GCN 2.0 (2013−2017)
Navi / RDNA2 (2020−2022)
GPU code name
Grenada
Navi 22
Market segment
Desktop
Desktop
Release date
September 2015
March 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
4x 8-pin
1x 6-pin + 1x 8-pin
Boost clock speed
-
2581 MHz
Core clock speed
1000 MHz
2321 MHz
Floating-point performance
2x 5,120 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
6,200 million
17,200 million
Pipelines / CUDA cores
2560
2560
Power consumption (TDP)
580 Watt
230 Watt
Texture fill rate
160.0
413.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
8 GB
12 GB
Memory bus width
512 Bit
192 Bit
Memory clock speed
5400 MHz
16000 MHz
Memory bandwidth
345.6 GB/s
384.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.3
6.5
Vulkan
1.2.131
1.2