Radeon R9 270 and Radeon RX 580 XTR - video card comparison
Radeon R9 270
Radeon RX 580 XTR
Architecture
GCN 1.0 (2012−2020)
GCN 4.0 (2016−2020)
GPU code name
Curacao
Polaris 20
Market segment
Desktop
Desktop
Release date
November 2013
April 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin
1x 8-pin
Boost clock speed
925 MHz
1340 MHz
Core clock speed
-
1257 MHz
Floating-point performance
2,368 gflops
6,175 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
2,800 million
5,700 million
Pipelines / CUDA cores
1280
2304
Power consumption (TDP)
150 Watt
185 Watt
Texture fill rate
74.00
193.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
8000 MHz
Memory bandwidth
179.2 GB/s
256.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
Eyefinity
1
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12.0 (12_0)
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
4.5
Shader Model
5.1
-
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-