The two titles also illustrate dramatically that if the core assets aren't up to scratch, dropping them into an HD environment isn't going to help matters and actually serves to more effectively highlight their shortcomings. With that in mind, it's perhaps no surprise that the more modern Splinter Cell: Chaos Theory is by far the most effective game in the trilogy, and the only one we would really consider worth the £8 asking price.
...
Chaos Theory is definitely a cut above the other games in the remastered trilogy. For starters, it seems to have a much better, more consistent performance level overall than its predecessors - surprising bearing in mind that the engine is such a technological leap over the first two games. Either the game had a lot more care and attention put into it or perhaps elements of the existing PS3 version of Double Agent may have been useful. Alternatively, it may well have just been the case that the existing codebase was easier to work with.