Overclocking Buyer's Guide - August 2004

CPU and Motherboard: PERFORMANCE OC Recommendations

CPU: AMD Athlon 64 FX53 (2.4GHz 1024K L2 cache)
Motherboard: MSI K8N Neo2 (nForce3 Ultra)
Price: CPU - $811 shipped (Retail). Motherboard - $165 shipped

For Overclockers looking for the best performance possible, it would be tough to recommend anything other than the Athlon 64 FX53. The Athlon 64 is currently the fastest processor you can buy; the Dual-Channel Socket 939 is the top-performing A64 Socket, and the FX is the fastest 939 processor. The FX also has the distinction of being the only processor that is completely unlocked. That means that you can adjust multipliers both up and down, to obtain the highest possible speed at the fastest DDR400 memory timings, or to obtain the highest FSB that your high speed memory can run or your CPU can reach. Most FX53 that we have tested easily reach 2.6GHz at default voltage with air cooling, and some do even better. This pegs performance at a clock speed that we won't see in a retail CPU until late this year.

While the 3500+ (2.2GHz) can reach similar speeds, it is still multiplier locked at the top (lower multipliers can be selected though) and the cache is only half of what is found on FX53. The 3800+ runs at the same 2.4GHz with half the cache, but again, the regular Athlon 64 are top-locked, and the small price difference between FX53 and 3800+ makes it difficult to choose the 3800+ over the FX53.

What you get in the FX53 is the fastest stock performance currently available among desktop processors, and the ability to reach even higher. AMD does not call the FX series their Enthusiast CPU for nothing. There are no locks to hold you back and the real limit is what the .13 process can do with Athlon 64. Based on how very well the FX53 has performed in our tests in recent reviews, we can hardly wait to test the new 90nm process FX chips that should become available at the end of the year.

While they are just beginning to appear in the retail channel, the MSI K8N Neo2 stood out in our recent Socket 939 roundup as a top performer and earned the AnandTech Gold Editor's Choice. Perhaps even more important to an overclocker, the K8N Neo2 was the only board in the 939 roundup to match and actually edge ahead of the standout memory performance of the legendary Asus P4C800-E in our overclock tests. The K8N Neo2 actually reached a Clock Frequency of 290 (DDR580) with fast DDR550 memory that we used in our overclock tests. Wherever you can take the FX53, the K8N Neo2 will go - to the limits of your CPU or memory.

While the overclocker will likely turn off most everything when pushing boards to the limit, when the day is done and the system returns to a little more sedate levels, the K8N Neo2 will continue to impress with a full implementation of the features of the nForce3-250Gb/Ultra including fast on-chip LAN, any-drive RAID that allows IDE and SATA hard drives to be combined in RAID arrays, and an on-chip Firewall. The feature set compares well to any premium Socket 939 on the market and will not disappoint.

For the best overclocking experience, you can count on a working AGP/PCI lock with adjustments from 66 to 100, CPU multipliers from 4X to 20X, HyperTransport adjustments from 1GHz to 200MHz (5x-1x), and CPU frequencies from 200 - 300. You also get a full range of voltage adjustments - vCore to 1.85V, memory voltage to 2.85V, and vAGP to 1.85V. This is even a board for the beginning overclocker, since there are automatic overclocking selections in Core Cell that set everything for you. You just choose the % overclock from 1% to 11% and the board does the rest.

We have never tested a perfect board, and as much as we like the K8N Neo2, there are still areas for improvement. The CPU frequency range is really not wide enough for a board that does 290 at 1:1; we would prefer to see 350+ in that area. The greatest improvement that MSI could make is to provide finer adjustments for CPU ratios, providing 0.5X ratios like some of the competing boards. Last, there is no real voltage adjustment for HT or chipset voltage, and that would add to the flexibility. In the end, it's hard to complain about a board that does so much, so well. The MSI reached 290x9 (2610) with fast memory, and for those who prefer raising the ratio, 2652 was an easy 13x204. Since all of these were at near stock voltages, serious overclockers will find ways to get even more from an FX53 on the MSI K8N neo2.

Listed below is part of our RealTime pricing engine, which lists the lowest prices available on AMD CPUs from many different reputable vendors:



If you cannot find the lowest prices on the products that we've recommended on this page, it's because we don't list some of them in our RealTime pricing engine. Until we do, we suggest that you do an independent search online at the various vendors' web sites. Just pick and choose where you want to buy your products by looking for a vendor located under the "Vendor" heading.