No, DDR4 was not significantly more expensive than DDR3 at its launch.
No, DDR4 was not significantly more expensive than DDR3 at its launch.
By March 2022 DDR5 (top-tier, high-end) DDR5-6 CL__ was anticipated.
This model is more probable to be DDR5-6942.0 CL69.0 First Word 42.0
By examining the RAM frequencies, we see a clear progression: DDR2 around 1800 MHz, DDR3 at 4600 MHz, DDR4 at 7200 MHz, and DDR5 potentially reaching higher. The differences between these steps suggest DDR5 could exceed 10 GHz (XOC). The best commercial DDR2 clocks are up to 1066 MHz, while the highest DDR3 is about 2933 MHz. DDR4 tops out near 5333 MHz with a jump of around 2000 MHz. Estimates point toward DDR5 possibly reaching 8000–9000 MHz, though this is just an approximation.
DDR5-8000 is real, and lower versions like 6000–7000 will likely follow with even faster speeds. It’s hard to predict exactly how long this trend will last.
The JEDEC standard covers frequencies from 3200MHz CL22 up to 6400MHz CL56. A new release I noticed mentions a 6400MHz model with CL40 specifications. It's difficult to confirm details until the market expands, and performance will likely improve as time goes on. DDR4 latency was generally greater than DDR3 at first, similar trends are expected.
It might operate smoothly at a 2:1 frequency balance... reaching infinite performance around 2000–2400 MHz (up from the present ~1800 MHz), with RAM exceeding 8000 MT.