Radeon R9 390X and Radeon R9 380 - video card comparison
Passmark - benchmark score Radeon R9 390X vs Radeon R9 380
Radeon R9 390X
9722
Radeon R9 380
6330
Radeon R9 390X
Radeon R9 380
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Grenada XT
Tonga Pro
Market segment
Desktop
Desktop
Release date
June 2015
June 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
1050 MHz
970 MHz
Compute units
-
28
Floating-point performance
5,914 gflops
3,476 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,000 million
Pipelines / CUDA cores
2816
1792
Power consumption (TDP)
275 Watt
190 Watt
Texture fill rate
184.8
108.6
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1050 MHz
970 MHz
Memory bandwidth
384 GB/s
182.4 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
+
+
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
-
+