| bonzobanana said: Switch is definitely at least 2x cpu performance of wii u but the wii u does have some advantages, the 60GB/s of eDRAM, the secondary wii gpu which may be able to be used for processing main graphics not just generating gamepad screen and a dedicated ARM DSP for all audio. Ultimately memory provides the top barrier to performance so shared 25.6GB/s memory is the top limit. How much does only 32MB of 60GB/s eDRAM assist 12.8GB/s of 2GB memory, would need to know the ratio of eDRAM access to main memory but looking at the xbox one compared to ps4 it does help maybe covers 20% of the bandwidth deficit on that system but then with the wii u having such low bandwidth main memory it probably is much more effective. I wouldn't be suprised if the combination gave wii u effective memory bandwidth of 18-20GB/s but these are total guesses. Hardly a world apart from Switch at 25.6GB/s. Unless of course there is some customisation of the Nvidia X1 that enhances performance on Switch which I've been looking for in the game performance but sadly if anything the Switch is performing below my expectations in docked mode probably purely down to the low memory bandwidth that is killing performance when the system is under higher load. Sadly its not something that can be tweaked with a later firmware either as I can't see Nintendo overclocking their memory chips even if they could tweak the cpu and gpu speeds a bit when docked. I was hoping that Nintendo had put some additional cache memory in the customisation of the Nvidia X1 to replace the little cpu cores. It will be interesting to see the x-ray scans of the Switch chips. |
in the PC space the Maxwell and Pascal architectures have a big advantage in their efficiency of memory use (size/bandwith), which seems to stem from using tiled resources (afaik that's what Nvidia said at the 1080 TI reveal) - I know that the technique was talked about quite a bit post Xone reveal, so maybe the WiiU/Xone already could use it even though they have AMD HW as it makes a lot of sense to do so with their eD/eSRAM
however if they didn't the Switch might have a bit of a leg up there
