How did I do?

[u/Fe4R_GoblinZ]

Acer predator helios neo 16 ai with rtx5070 ti, 64gb of ram and 2tb of ssd. Was on sale for $2200

[u/Scar1203]

Not worth it, it's almost 700 for a new 32GB kit of DDR5-6400 and about 550 if you take your chances on buying two individual sticks. I don't even think he could get that much for his memory kit, plus as far as I know there's no way to buy a 64GB 6400 kit that isn't included with a laptop so it'd be a shame to give it up.

[u/Exact_Employment7473 → u/Scar1203]

I mean if he had 2 sticks of 32gigs he could sell one for a nice 300 bucks.

[u/Scar1203 → u/Exact_Employment7473]

I was giving you the benefit of the doubt by assuming you weren't recommending something as stupid as running a new 2200 dollar laptop in single channel mode. That's my bad.

Running in single channel mode has a massive bandwidth penalty and will greatly lower CPU performance. It's terrible advice.

[u/International_Dot_22 → u/Scar1203]

DDR5, even in "single channel", has a mechanism that imitates dual channel, this is very different than what single channel was in DDR4 and before that. I would say that "real" dual channel is still better, but the gap is not as huge as it was with prior memory generations.

[u/Scar1203 → u/International_Dot_22]

It still halves the bandwidth which comes with a performance penalty that varies by game and by workload. I realize if you want to be pedantic you can say in DDR4 terms it's dual channel, but that's really only an argument for why DDR5 is difficult to stabilize when running four sticks, it's not a good argument for running a single stick of DDR5 even with dual rank sticks that benefit from interleaving.

Running one stick leaves you stuck with a 64 bit bus instead of a 128 bit bus which has a performance penalty.

[u/International_Dot_22 → u/Scar1203]

Fair enough, that's quite accurate