At the begining of this review I made a comment about my previous experiences with OCZ products. While I've always been satisfied with the results, they were always just... well, satisfactory. Not to say I've had problems with them, or felt they didn't live up to their name, only that they performed exactly to OCZ specification, and not a whole lot better. Of course as I said, up until now I've only personally used memory modules from their Performance, Gold and Platinum series, which may be the crux of the issue right there. If you want the highest overclocking memory modules now you've got to be looking at the Flex, Reaper and Titanium line.

Despite any trepidations I may have had when I began this review, let me say right up front that the OCZ PC2-6400 Titanium CAS3 memory far exceeded every performance expectation I had. Aside from the modules' good looks and solid construction, qualities I have come to rely on from OCZ, the memory easily surpassed the specifications they are labeled with. It's like looking at the system requirements for a new game, and you compare the minimum specifications to the recommended and think, "yeah, maybe it will play with those specs, but to really get the most out of this I need to run the recommended." That's what the OCZ Titanium memory does... it may come with a "minimum" rating but they're soo capable of much, much more.

Almost a 20% overclock at its rated timings of 3-4-4-15 and more than a 40% overclock by loosening them to 5-5-5-15, which is what every other memory module in that range calls for anyway, so it's not like you're taking a hit by running them that fast. Whether you chose to run them with less latency or higher frequency, they perform equally well at either. As to which one is better, it's kind of a toss-up. The benchmarks go both ways, depending on which one you look at, although certainly the overclocked CAS3 had a slight CPU and HTT advantage over the CAS5 setting. It really boils down to which one is going to work better with your CPU and system.

The OCZ PC2-6400 Titanium CAS3 is priced competitively in the same ballpark as other DDR2-800 memory, maybe a little higher than the average CAS4 or CAS5 stuff, but certainly far less than modules rated for what these things are capable of. This particular set managed to run the equivalent of PC2-9000, granted it took 2.4v to get there, but with OCZ's EVP guarantee, you're not voiding your warranty running them with that much voltage. Aim a fan at those lovely XTC heat spreaders and they stay cool to the touch, even at 100% load.

There's no question about it, the OCZ PC2-6400 Titanium CAS3 dual-channel kit earns the OCIA.net Seal of Approval. In fact, it's probably earned two.