Radeon RX 490M and Radeon R9 M270 - video card comparison
Radeon RX 490M
Radeon R9 M270
Architecture
Polaris (2016−2019)
GCN (2011−2017)
GPU code name
Polaris
-
Market segment
Laptop
Laptop
Release date
August 2016
April 2014
Core clock speed
-
725 MHz
Manufacturing process technology
14 nm
28 nm
Number of transistors
-
1500 Million
Pipelines / CUDA cores
-
640
Memory type
GDDR5
GDDR5
Maximum RAM amount
-
4 GB
Memory bus width
-
128 Bit
Memory clock speed
-
4500 MHz
Shared memory
-
-
DirectX
12
12 (FL 11_1)