It doesn’t matter what we choose for Intel’s new desktop development, as both memory standards have their own benefits.
We reported a week ago about it Alder Lake seems to be a huge step forward in productivityOn the other hand, it doesn’t look like a gaming hack. However, there is another interesting issue in the latter areas, and that is the effect of DDR5. As is known, the desktop platform will also support DDR4 and DDR5 memory, and based on the raw data, it does not matter which one we choose.
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The latest manufacturer’s measurements show that both types of memory have advantages. DDR5 splits further during rendering, and here it is true that the faster the memory, the greater the advantage, and the faster DDR5 will be in productivity-focused tasks. However, in games, DDR4 seems to be stronger.
In this regard, we knew that the memory clock wouldn’t really count for Alder Lake-S, but activating the Gear 1 setting, where the memory controller’s memory clock would be synchronized with the memory clock. Depending on the processor type, the clock will be ideal, but Gear 1 can be activated with DDR4 memory with an effective clock speed of 3.2 or 2.93 GHz, which means that the memory controller is the real memory. It records the clock signal, i.e. 1.6 or 1.46 GHz respectively.
Complicating matters further for DDR5 memory is the fact that these memories run at very high clock speeds, so the Gear 2 and Gear 4 settings can be selected. The former specifies the real memory half hour and the latter a quarter for the memory controller. This means a clock signal of 1.2 or 0.6 GHz for DDR5 modules operating at the maximum effective frequency of 4.8 GHz in terms of specifications. In addition to tuning, it is possible to bring an effective clock signal of 6.4 GHz with the appropriate DDR5 memory, but so much attention must be paid to stability that this mode often works only with the parameter of Gear 4, resulting in a clock signal of 0.8 GHz. memory controller, which causes a very large delay in accessing memory.
In general, the current DDR5 modes aren’t really good for gaming because the Gear 1 setting can’t realistically activate due to the high clock speed, and the other options increase the delay in accessing memory significantly. Because of this, anyone who will play Alder Lake-St might do better with motherboards that support DDR4 memory.
The indisputable advantage of DDR5 will be in consumption, it is no coincidence that Intel demands this standard in the mobile version, but at the desktop level, a slightly lower power consumption is not as important. This is probably why motherboard manufacturers primarily design motherboards with an LGA1700 slot for gamers for DDR4.