We were very fortunate to be given the opportunity to test the new Corsair 2GB paired memory modules. Even before performing a single test run with these modules, we were expecting to see some good performing RAM, since all the Corsair memory modules that we have tested in the past gave us very good results. However, this was the first time that we chose to test a 2GB memory set, since 1GB sets have been very popular.

The Corsair TwinX2048-4000PT offer 500MHz operating frequency (3-4-4-8). This is one of the fastest operating frequencies that you can find for DDR memory. You should remember though, to manually change some BIOS settings in order to make this memory work at 500MHz. Of course, depending on your motherboard, changes may not be required.

We had no problems working in Dual Channel mode with the Corsair TwinX2048-4000PT. After all, as Corsair mentions, all Corsair matched memory pairs are double-checked to work in Dual Channel mode. In most tests that we have done, the TwinX2048-4000PT was the fastest memory.

If you are an overclocking geek, you would be happy to know that we had no heating problems when we overclocked this memory to 554MHz, and we got a stable system even without changing the timings. However, there was no major boost in performance. But after all, 500MHz is already enough, even for the more advanced users.

The Corsair TwinX2048-4000PT memory is priced at US$257.00 (from newegg.com), which is a small price to pay for one of the fastest memory pairs on the market.

The Good:
- Excellent performance at 500MHz
- Cool operation
- Very good price

The Bad:
- Must fiddle with the BIOS settings to get 500MHz operating frequency