Radeon R9 390 and Radeon R9 380X - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon R9 380X
Radeon R9 390
9182
Radeon R9 380X
6380
Radeon R9 390
Radeon R9 380X
Architecture
GCN 2.0 (2013−2017)
GCN 3.0 (2014−2017)
GPU code name
Grenada
Antigua
Market segment
Desktop
Desktop
Release date
June 2015
November 2015
Bus support
PCIe 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
2 x 6-pin
Bridgeless CrossFire
1
1
Boost clock speed
1000 MHz
970 MHz
Compute units
-
32
Floating-point performance
5,120 gflops
3,973 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,000 million
Pipelines / CUDA cores
2560
2048
Power consumption (TDP)
275 Watt
190 Watt
Texture fill rate
160.0
124.2
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1000 MHz
970 MHz
Memory bandwidth
384 GB/s
182.4 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
1
1
Number of Eyefinity displays
6
6
HDMI
+
+
DisplayPort support
+
+
DirectX
DirectX® 12
DirectX® 12
Mantle
+
+
OpenCL
2.0
2.0
OpenGL
4.6
4.5
Shader Model
6.3
6.3
Vulkan
+
+
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
+
Enduro
-
-
FreeSync
1
1
FRTC
-
1
HD3D
-
+
LiquidVR
-
1
PowerTune
+
+
TrueAudio
+
+
VCE
+
+
ZeroCore
-
+