By using this site, you agree to our Privacy Policy and our Terms of Use. Close
HoloDust on 26 September 2025
Edit Thread
Darc Requiem said:
HoloDust said:

Well, on paper that Snapdragon X2 Elite Extreme is very impressive, can't wait to see first benchmarks.

I want to see the real world performance. Synthetic tests are nice, but I like to see how they translate in practice. 

Me as well - problem is, there are very few things were you can compare them head to head, apart form actual synthethinc benchmarks, like 3D Mark.

But, Snapdragon's have been really good (if not actually the best) in sub 10W market for quite a while now, it's nice to see them going for the 20+ W market now, which honestly needs some competition.

Bofferbrauer2 said:
Darc Requiem said:

They need to have APU with same memory bus as Strix Halo. One of the biggest boat anchors around improved APU performance is memory bandwith. Strix Halo has a 256-bit memory bus instead of typical 128-bit bus. Doubling the memory bandwidth would do wonders for performance. 

There are other and better alternatives than this. For doubling the bandwidth you'd need to thicker boards made of more layers, which strongly increases their price. It's one of the reasons why entry-level GPUs come with such small bandwidths

  • HBM: Would eliminate the bottleneck but at a hefty price, so probably not worth it
  • GDDR7: Would be very fast, but capacity could be a concern.
  • LPDDR5X: Samsung is now producing LPDDR5X-9600 memory, which would strongly increase the bandwidth over the LPDDR5 memory in the Steam Deck with minimal changes
  • DDR6: Expected in 2027, it increases bandwidths considerably as it comes with speeds ranging from DDR6-8800 to DDR6-17600. So if there's no successor until then this could be a very viable option.

So yeah, there are a lot of alternatives, some more sensible than expanding the bus to 256 bit.

I think Samsung is already manufacturing LPDDR5X-10700. That would give mobile devices ~171GB/s on 128-bit bus. My guess - it's very expensive.