DDR3
DDR3 (Double Data Rate 3) is an older generation of Synchronous Dynamic Random-Access Memory (SDRAM) that provides double the data transfer rate of the previous DDR2 standard, offering higher bandwidth, lower power consumption, and better performance for its time. While it was a significant upgrade from DDR2, with speeds from 800 MHz to 2133 MHz, DDR3 is now considered outdated and is incompatible with modern systems that use DDR4 or DDR5, according to Lexar.
What DDR3 does:
Higher bandwidth: DDR3 transfers data at a higher rate than DDR2 by performing two data transfers per clock cycle, leading to faster overall system performance.
Lower power consumption: DDR3 consumes less power than DDR2, which improved battery life in laptops and increased performance at lower power levels.
Improved performance: The combination of increased bandwidth and lower power consumption led to better overall system performance, faster loading times, and smoother gameplay compared to its predecessors.