Radeon R9 390 and Radeon Sky 500 - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon Sky 500
Radeon R9 390
9182
Radeon Sky 500
4906
Radeon R9 390
Radeon Sky 500
Architecture
GCN 2.0 (2013−2017)
GCN 1.0 (2012−2020)
GPU code name
Grenada
Pitcairn
Market segment
Desktop
Desktop
Release date
June 2015
March 2013
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
1x 6-pin
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
-
Core clock speed
-
950 MHz
Floating-point performance
5,120 gflops
2,432 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
2,800 million
Pipelines / CUDA cores
2560
1280
Power consumption (TDP)
275 Watt
150 Watt
Texture fill rate
160.0
76.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1000 MHz
4800 MHz
Memory bandwidth
384 GB/s
154 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DisplayPort
Eyefinity
1
-
Number of Eyefinity displays
6
-
DisplayPort count
-
1
Dual-link DVI support
-
1
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (11_1)
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
+
1.2.131
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-