Radeon R7 265 and Radeon R9 M390 - video card comparison
Radeon R7 265
Radeon R9 M390
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Pitcairn
Pitcairn
Market segment
Desktop
Laptop
Release date
February 2014
June 2015
Bus support
PCIe 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1 x 6-pin
-
Boost clock speed
925 MHz
-
Floating-point performance
1,894 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
5000 Million
Pipelines / CUDA cores
1024
1024
Power consumption (TDP)
150 Watt
-
Texture fill rate
59.20
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1400 MHz
-
Memory bandwidth
179.2 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
-
Eyefinity
1
1
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
DirectX® 12
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+