Radeon R9 390 and Radeon X1650 GT - video card comparison
Radeon R9 390
Radeon X1650 GT
Architecture
GCN 2.0 (2013−2017)
R500 (2005−2007)
GPU code name
Grenada
RV560
Market segment
Desktop
Desktop
Release date
June 2015
May 2007
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
None
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
-
Core clock speed
-
400 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
80 nm
Number of transistors
6,200 million
330 million
Pipelines / CUDA cores
2560
-
Power consumption (TDP)
275 Watt
-
Texture fill rate
160.0
3.200
Memory type
GDDR5
GDDR3
Maximum RAM amount
0 MB
128 MB
Memory bus width
512 Bit
128 Bit
Memory clock speed
1000 MHz
800 MHz
Memory bandwidth
384 GB/s
12.8 GB/s
High bandwidth memory (HBM)
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x VGA, 1x S-Video
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
9.0c (9_3)
Mantle
+
-
OpenCL
2.0
N/A
OpenGL
4.6
2.0
Shader Model
6.3
3.0
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-