Radeon R9 270 and Radeon R9 390X2 - video card comparison
Radeon R9 270
Radeon R9 390X2
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Curacao
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Market segment
Desktop
Desktop
Release date
November 2013
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Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1 x 6-pin
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Boost clock speed
925 MHz
1000 MHz
Floating-point performance
2,368 gflops
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Manufacturing process technology
28 nm
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Number of transistors
2,800 million
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Pipelines / CUDA cores
1280
-
Power consumption (TDP)
150 Watt
-
Texture fill rate
74.00
-
Memory type
GDDR5
512
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
5400 Bit
Memory bandwidth
179.2 GB/s
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Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
-
Eyefinity
1
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
GDDR5
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-