Radeon R9 390X and GeForce RTX 3080 - video card comparison
Passmark - benchmark score Radeon R9 390X vs GeForce RTX 3080
Radeon R9 390X
9722
GeForce RTX 3080
26043
Radeon R9 390X
GeForce RTX 3080
Architecture
GCN (2011−2017)
Ampere (2020−2022)
GPU code name
Grenada XT
Ampere GA102
Market segment
Desktop
Desktop
Release date
June 2015
September 2020
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1x 12-pin
Bridgeless CrossFire
1
-
Boost clock speed
1050 MHz
1710 MHz
Core clock speed
-
1450 MHz
Floating-point performance
5,914 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
6,200 million
28,300 million
Pipelines / CUDA cores
2816
8704
Power consumption (TDP)
275 Watt
320 Watt
Texture fill rate
184.8
465.1
Memory type
GDDR5
GDDR6X
Maximum RAM amount
0 MB
10 GB
Memory bus width
512 Bit
320 Bit
Memory clock speed
1050 MHz
19000 MHz
Memory bandwidth
384 GB/s
760.3 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
Eyefinity
+
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 Ultimate (12_2)
CUDA
-
8.5
Mantle
+
-
OpenCL
2.0
2.0
OpenGL
4.6
4.6
Shader Model
6.3
6.5
Vulkan
+
1.2
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-