Valve has just updated its Steam Deck spec sheet and the upcoming gaming handheld is even more impressive than we originally thought.
Spotted by Twitter user Locuza , the original listing showed that the Steam Deck had dual channel LPDDR5 RAM with a transfer rate of 5500 MT / s, which under- estimated the Steam Deck's memory transfer speed. Updated specs show this with four-channel memory, not two-channel memory, which will allow even greater memory bandwidth.
The updated datasheet may seem like a small change, but in the case of the Steam Deck, it is a pretty important one. The four-channel memory will speed up performance, which will be a big selling point for a portable console like Steam Deck, which is expected to play some fairly demanding PC games.
(Image credit: Valve)
The difference between four-channel memory and dual channel memory may not seem like huge, but like PC Gamer breaks down, the distinction is going to be very important for the AMD APU at the heart of the Steam Deck.
L ' AMD Zen 2 APU from the Steam Deck combines the CPU and GPU into a single chip that shares a single memory pool, so with dual channel memory you would effectively have two different processors competing for those two channels.
This would essentially reduce the memory to a single channel for all CPU and GPU tasks, so even with blazingly fast transfer speeds you would lose the benefit of having an extra channel. Four-channel memory eliminates this problem, so you'll get much better performance while gaming than you would otherwise.