Radeon R9 390 and Radeon RX 7950 XTX - video card comparison
Radeon R9 390
Radeon RX 7950 XTX
Architecture
GCN 2.0 (2013−2017)
RDNA 3.0 (2022)
GPU code name
Grenada
Navi 31
Market segment
Desktop
Desktop
Release date
June 2015
-
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
2x 8-pin
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
3300 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
6,200 million
57,700 million
Pipelines / CUDA cores
2560
6144
Power consumption (TDP)
275 Watt
355 Watt
Texture fill rate
160.0
1,267
Memory type
GDDR5
GDDR6
Maximum RAM amount
0 MB
24 GB
Memory bus width
512 Bit
384 Bit
Memory clock speed
1000 MHz
20 GB/s
Memory bandwidth
384 GB/s
960.0 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 Ultimate (12_2)
Mantle
+
-
OpenCL
2.0
2.2
OpenGL
4.6
4.6
Shader Model
6.3
6.7
Vulkan
+
1.3
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-