OCZ has geared their DDR2 Value Pro towards "mainstream desktop users". We had the DDR2 PC2-4200 Value Pro modules on our testbench and were surprised by how far we could overclock this memory. Close to DDR2-750 at stock voltage is certainly not mainstream. Timings could also be tightened from 4-4-4-8 to 3-3-2-4. Great results, especially if you consider the price of $120 for a 2x512MB kit.
After the success of the old "BH-5" PC3500 LVL2, Mushkin tries to continue the success story with the new Redline XP4000. They select the best Winbond UTT CH-5 and use them on these modules to have a big clearance above the specifications. The modules offer 250 MHz with tightest timings of 2-2-2, but require active cooling. We test these sticks at up to 3.5V and see how far they go.
If you ask an overclocker "Best memory chips ever?" you will most probably get the reply "Winbond BH5". Unfortunately Winbond stopped production some time in 2003 and supply of these chips was running dry pretty fast. Now Winbond is back with their BH5 UTT and OCZ has built the PC-3500 Gold Gamer Extreme modules with it. The modules run at aggressive timings of 2-2-2-5 and offer a lifetime warranty for up to 3.1V memory voltage.
OCZ is known as a memory manufacturer who produces high-end enthusiast memory. The recently released Titanium Line is more focused on stability of operation, than for overclockers. It features OCZ's Lifetime PowerSwap Warranty which is a unique feature to the Titanium Series. If your memory breaks at any time, you call up OCZ and they will send out a replacement via Fedex on the same day. Once you got your system up and running you ship the defective memory back to them within two weeks.
Right now, DDR2 is only available to the Intel Platform. The biggest drawback people are complaining about, is that DDR2 is running at slower timings than traditional DDR. That is why OCZ, who have always been designing products with the enthusiast in mind, came up with a memory that can run at 667 MHz but at tighter timings than the standard JEDEC Spec. The maximum clock we could get out of the memory at 2.4V was DDR726 at Timings of 4-2-2-8.
TwinMOS is returning the legendary Winbond BH-5 chips to the market. We could run these competetively priced modules at speeds of over DDR500.