GeForce RTX 3080 Ti and Radeon R9 390 X2 - video card comparison
GeForce RTX 3080 Ti
Radeon R9 390 X2
Architecture
Ampere (2020−2022)
GCN 2.0 (2013−2017)
GPU code name
Ampere GA102
Grenada
Market segment
Desktop
Desktop
Release date
September 2020
September 2015
Interface
PCIe 4.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 12-pin
4x 8-pin
Boost clock speed
1667 MHz
-
Core clock speed
1370 MHz
1000 MHz
Floating-point performance
-
2x 5,120 gflops
Manufacturing process technology
8 nm
28 nm
Number of transistors
28,300 million
6,200 million
Pipelines / CUDA cores
10240
2560
Power consumption (TDP)
350 Watt
580 Watt
Texture fill rate
532.8
160.0
Memory type
GDDR6X
GDDR5
Maximum RAM amount
12 GB
8 GB
Memory bus width
384 Bit
512 Bit
Memory clock speed
19000 MHz
5400 MHz
Memory bandwidth
912.4 GB/s
345.6 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 (12_0)
CUDA
8.6
-
OpenCL
3.0
2.0
OpenGL
4.6
4.6
Shader Model
6.6
6.3
Vulkan
1.2
1.2.131