Radeon RX 580 Mobile and Radeon R9 270 - video card comparison
Radeon RX 580 Mobile
Radeon R9 270
Architecture
Polaris (2016−2019)
GCN 1.0 (2012−2020)
GPU code name
Polaris
Curacao
Market segment
Laptop
Desktop
Release date
April 2017
November 2013
Bus support
-
PCIe 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
-
1 x 6-pin
Boost clock speed
1077 MHz
925 MHz
Core clock speed
1000 MHz
-
Floating-point performance
4,963 gflops
2,368 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
2,800 million
Pipelines / CUDA cores
2304
1280
Power consumption (TDP)
100 Watt
150 Watt
Texture fill rate
155.1
74.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
8000 MHz
-
Memory bandwidth
256.0 GB/s
179.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
+
DirectX
12 (12_0)
DirectX® 12
Mantle
-
-
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
+
AppAcceleration
-
-
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
+
LiquidVR
-
1
PowerTune
-
-
TressFX
-
1
TrueAudio
-
+
UVD
-
+
ZeroCore
-
-