[Asus Transformer TF700] HoushaSen:
Multiple discussion and in my opinion no true conclusion.

As jtrosky indicated benchmarks are number. It stresses system and measures the maximum capability. Just to put into simple context. If you are benchmark test believer, my Antutu score without any special tweak or custom rom other than turned off bloatwares and installed browser2ram, I get 13000+ Antutu total benchmark score. One can argue that Antutu total score if reflective of overall real life experience therefore, this tablet performs the best.

Alternative would be just as many are concerned, just pick the worst benchmark score subsection or component and conclude that the reflective of real life performance. This approach is technically not a bad idea as you basically making an assumption of bottleneck, which max out the entire system performance even before rest of the component can show their true power.

However, one flaw for applying this to IO. That the system is not sequential linear operation i.e. IO -> RAM -> Cache -> CPU/GPU -> Cache -> RAM -> IO then next cycle of operation. It is much more complex than this, and if it was truly above, no system can perform well in current days standard because no nand device is faster than the RAM, and no RAM is faster than the Cache. Also, why would desktop with much slower hard drive perform so well? (assuming other components are good).

Just as an example, instead of doing above one at a time and go back to IO, if you do two operations before you write back to IO, then what happens? You didn't really change nand writing speed, but you can potentially double the overall experience. Obviously, in order to do this RAM and Cache must have enough space to allow two operations before writing back, and also RAM and Cache as well as actual CPU/GPU processing has to be more than 2x faster than IO.

In any event, I am just bringing up an example that benchmark especially picking one component that is relatively lower end of processing chain is not the entire reflection of the system performance. You can do several things (in theory) to make overall performance increase.

My understanding of all these concern came up initially because of

1. Frequent Application Not responding

2. System lag/stutter while downloading/installing applications from Google Play

3. System lag/stutter while downloading file over wifi

Based on my experience (I had infinity from the day #1 release in US, and returned it after 4 weeks and now back), I had significant ANR initially which lead me to seek for alternative device. #3 is well demonstrated on Anandtech video. #2 is most of us experience at one point for sure.

However, currently on my stock rom with bloatware turned off browser2ram installed,

#1 is pretty much completely gone. And Prime user's forum have several comments stating significant improvement specifically about ANRs.

#2 is also reportedly improved according to some comment in prime user's forum after JB.

#3 is I have proven with my video on other thread either because of browser2ram or more recent firmware update, it had significantly improved/eliminated what Anandtech showed back in July.

We should be more concerned if IO issue was actually at RAM level because only way to fix it would be Cache but that has such small space to work. However, if we were to believe benchmark, Antutu RAM score on Infinity is better than that of Galaxy Note 10.1

Now I am not saying though ASUS will indeed fix these. Even there may be potential solution, they simply may not do so... So if you are having truly IO related issue, and after JB you don't see the improvement to the degree of your satisfaction, you may have to use custom rom. If you don't have Infinity yet, and considering buy it from place you can return after Jellybean update and use the system on your own for daily use and see if you can notice any issue because there is a chance that you may not even see the problem. So in the end what is that you are trying to fix (if there is still an issue).

The benchmark score? Or what deemed to be IO based issue? I am pretty sure it is latter and ask yourself so what's the IO issue that you have/had? Because to be honest, again I had issues originally but I no longer have any of those. Yes. I can crash my system by downloading 1GB system in background over wifi and try to play Horn, but I can crash my PC when encoding MP4 and try to play high end graphic game. It really depends on what you want to do. :)