Tag Archives: CPU

Overclocking CPUs for Beginners

CPU heatsinksI haven’t participated in it, I’ve never tried it, and I probably wouldn’t even recommend it, but I am intrigued by the idea and was interested in finding out more about it. My limited knowledge on the subject is: your CPU runs faster, but it also runs hotter, so you may have better performance, but you also may burn out your system. Most people will never need to overclock their CPU, and doing so will almost certainly void your warranty: Overclocking isn’t for everyone […] it can be time consuming and frustrating, […] But there’s a unique sense of satisfaction to be gained from pushing your hardware to its limits and achieving greater performance than you’ve actually paid for.

What is overclocking?
Simply put, overclocking refers to running a system component at higher clock speeds than are specified by the manufacturer. At first blush, the possibility of overclocking seems counter-intuitive—if a given chip were capable of running at higher speeds, wouldn’t the manufacturer sell it as a higher speed grade and reap additional revenue? The answer is a simple one, but it depends on a basic understanding of how chips are fabricated and sorted.

An excerpt from: A beginner’s guide to overclocking

Again, this is an interesting article that provides a great deal of insight into how a chip is made and a bit on how they work, but even for a highly skilled individual, overclocking can lead to headaches and ruin hardware. SuperbHosting.net does not recommend an individual attempt to overclock the CPU of their personal computers or their server, and those that choose to do so are completely responsible for the results, good or bad.

Intel Woodcrest, AMD’s Opteron and Sun’s UltraSparc T1: Server CPU Shoot-out

Featuring one of the processors that Superb offers in our dedicated servers, the Intel Woodcrest, this is a great article that compares three of the major server CPU manufacturers. In four years, AMD’s Opteron gained a 48% share of the US and a 36% share of the worldwide four socket server market. The response by Intel to this pressure from competition was the Woodcrest chip. Some of the results:

  • The new Woodcrest is about 20-25% faster than the fastest dual-core Opteron.
  • A 7% clockspeed advantage (most likely a result of the fact that the Woodcrest was baked with a newer 65nm process).
  • When it comes to integer performance, the Woodcrest numbers are simply stunning and vastly superior to any other architecture.
  • Overall: The Intel Xeon 5160, a.k.a. Woodcrest, will simply be the most powerful server CPU this year

Intel Xeon 5160 (Woodcrest)
Advantages:

  • Best server performance across all applications
  • Best Performance/Watt in the high end
  • Absolutely stunning web server performance
  • FB-DIMM enables high RAM capacity and bandwidth (quad channel)

Disadvantages:

  • Needs SSE optimized code for some special case code (RSA, AES)
  • FB-DIMM adds extra latency, cost (small) and power

For the full article, see this link: http://www.anandtech.com/printarticle.aspx?i=2772