I must say that it is a really good review of both products, but the CTD dragging the NGX down is somehow irritating. I never had a single CTD and I believe that most of the costumers don´t have them, but in the review it sounds like the majority of people are having them and completing a flight with the NGX is more luck than anything. In terms of performance they are right, the NGX is the most demanding addon to date, but since the other product isn´t near as complex it´s strange that the performance is just slightly better. So I personally think even in the performance sector the NGX outshines the other one. Maybe they should do an update to the article, once the SP1 is out.

I've made about 130 flights in the NGX. I had about 5 CTD's, all attributable to my computer hardware, with one to the latest hotfix. After altering my computer firmware, and uninstalling the hotfix, I no longer experience CTD's. PMDG has an awesome product here, and it should only get better with SP1.

My humble input is:- never had any CTDs despite heavy usage and long flights and lots of other addons- I want maximum possible realism. "Do we really need that" is a nonsense question. Of course we do!Im also turned off by the constant discussion about framerates and hardware requirements. It should be clear to everyone that a high fidelity sim requires beefy hardware. There is no way that any advances in sim fidelity should be hampered by constraints resulting from the alleged necessity to appease people with mediocde hardware.

Yeah, the repetitive notion of "but do we really need that?" annoyed me as well. Of course we do, otherwise we wouldn't buy a complex simulation like that. The ultimate goal for a simulation is to be as complex as its real life counterpart. That means that there is no such thing as "too complex" in a high fidelity simulation. Only "not complex enough" which equals "nice, but inadequate".

- I want maximum possible realism. "Do we really need that" is a nonsense question. Of course we do!

+1!!!

My 2 cents. I have seen iFly 737 running on a friend's machine. It is ugly pretty much everywhere and it kills the FPS by a 75%. PMDG 737 is a classy piece of software instead.

Careful with online translators! I noticed that the translation of a sentence can quite often be the complete opposite of the original intention. While the context helps filtering out these inversions, one should always take these automated translations with a grain of salt.

Indeed one should : evidently there is a restaurant somewhere in China, proudly named TRANSLATE SERVER ERROR... And no offence whatsoever meant to the good folk in China, as many of them speak my language a darn side better than I do theirs (which is not at all, frankly ). Anyway, that's enough OT, sorry.

Basically what they are saying is that if you have a high end system, the PMDG NGX is much better. If you want to stick with your low end system, get the Ifly.This summary already tells you which product is better.

In terms of performance they are right, the NGX is the most demanding addon to date, but since the other product isn´t near as complex it´s strange that the performance is just slightly better. So I personally think even in the performance sector the NGX outshines the other one.

I agree. My system certainly isn't the cream of the crop, as you can see in my sig, but performance was never an issue with the NGX.

Basically what they are saying is that if you have a high end system, the PMDG NGX is much better. If you want to stick with your low end system, get the Ifly. This summary already tells you which product is better.

I have an older system (can't remember the details, but it's 3 years old) and the PMDG NGX runs quite nicely on it with all the detail turned up pretty high. I used some suggested settings from ******* and from the folks at AOA and I consistently get 18 FPS minimum at LAX/ORD with Ultimate Traffic 2 running at ~75% traffic. The PMDG NGX has never had a CTD on my system (logged ~50 flight hours so far). I love the detailed modeling of the system, since if I don't do things the right way, the airplane responds and lets me know I've done something wrong, and I have to follow a non-normal checklist or supplemental procedure. Way cool Bill Rowe

I have an older system (can't remember the details, but it's 3 years old) and the PMDG NGX runs quite nicely on it with all the detail turned up pretty high. I used some suggested settings from ******* and from the folks at AOA and I consistently get 18 FPS minimum at LAX/ORD with Ultimate Traffic 2 running at ~75% traffic.

Wow I need you at my house to set up my system. Anyhow, I am happy with the NGX too, but at LAX/ORD in virtual cockpit I'd be more close to 12 - 15 FPS with occasional stutters, traffic to zero as i'm flying online.

Hi all. Well... interesting review. I have both iFly and 737NGX... I've had the iFly for quite sometime for FS9 and FSX, bought the NGX about a month ago. I have to be honest... as a veteran simmer of many years and the owner and flyer of pretty much every single add-on out there... there really isn't that much to choose between them. Sure, the NGX will allow me to delve right into the bowels of automatic flight, the sound pack is better... I like the airstairs, and the ground power/air units and chocks. I suspect the flight model is more accurate than iFly too, and the documentation...WOW!!! But... The ifly is complete at $55 dollars... the PMDG product - for the full family, including all the 600/700/BBJ models, when we get them - which the iFly already includes- will cost considerably more than that. Also, their product/customer support is second to none - and I do mean NONE - good as you guys at PMDG are. And don't get swayed by arguements about high end/low end systems... my system is pretty mediochre, and it runs both products pretty much identically. For me though, on my flying nights I always end up in a little tussle with myself ... PMDG or iFly...and it comes down to this...in familiar airspace, on or off line - the PMDG... its prettier on the screen... into new airports or less travelled routes - (wasn't that the name of a philosophy book? Anyway...) the iFly - I have better control of the payload and fueling and in 2D cockpit, I can see the F/O's NAV display... which is a big help in unfamiliar airspace. Conclusion... if you have a tight budget, iFly gives you more bang for your buck... if money is no option - get the PMDG - then again, if money is no option... get em both!Drew MeliaCaptain, Invictajet VA

I have better control of the payload and fueling and in 2D cockpit, I can see the F/O's NAV display... which is a big help in unfamiliar airspace.

2D cockpit?? The only time I push 'A' when I'm flying is by accident. I want a good virtual cockpit and spot on systems integration. PMDG does that better than any addon available.

PMDG vs Ifly --- Isn't it great to have the CHOICE & open options. I'll reserve judgement, till PMDG have had a chance to release their 1st SP. -- thats only fair !!

I'm happy to fly em both. Where the iFly scores is that it is a lot less demanding on a computer system, and that becomes important when you have EFB, FSW, RC4, ASE, REX, TOPCAT, MCE, AH and god knows what else running alongside FSX when making a full on realism flight. The fact is the PMDG NG starts to make my i7 struggle sooner than the iFly one does in those circumstances and although I've been lucky to not have too many issues with the PMDG NG, it's not without problems in this scenario whereas the iFly keeps on going. This is the price one pays for the fidelity the PMDG bird offers, since it is a far more complex treatment of the NG. This seems to tally with what that comparison review's conclusion is. Al

and that's the point. Each has its pros, and its cons, and each is a fine add-on in its own right. We all have different expectations and demands from our sim - and we haven't all got seething snorting water cooled P6 research spec pc's in our "office" and that limits our choices somewhat - not which product, but how we use it - hence I generally fly with the 2D panel, not the VC, and the NGX was clearly designed with the VC flyer in mind. And why not? Someday, ALL addons will be VC only, it makes sense to start developing with that in mind. I don't see the two as a choice of "either, or". I have both, I fly both, and I'll continue to fly both