Radeon HD 6640G2 and Radeon Steam Deck 8CU - video card comparison
Radeon HD 6640G2
Radeon Steam Deck 8CU
Architecture
Terascale 2 (2009−2015)
RDNA 2 (2020−2022)
GPU code name
-
RDNA 2 Sephiroth
Market segment
Laptop
Laptop
Release date
June 2011
November 2023
Boost clock speed
-
1900 MHz
Manufacturing process technology
40 nm
6 nm
Pipelines / CUDA cores
560
512
Shared memory
-
-
DirectX
11
12_1