Both Nvidia's GeForce GTX 560 Ti and AMD's Radeon HD 7970 are known to be fairly efficient, but the Radeon HD 7970 employs a newer 28 nm manufacturing process and a handful of technologies specifically intended to help reduce power consumption. As a result, Don's $1300 PC takes one of its few wins in our power-conservation chart. And that's not a bad place to show some dominance, since we'll be considering efficiency here in a second.
Significant performance advantages could end up being offset by the Customer Choice PC’s higher power consumption in our efficiency charts. Let's set the $1300 build’s performance as our 100% baseline.
Since nothing can be more than 100% efficient, we move the baseline to “0” in our efficiency charts by subtracting one from our Performance/Power calculation.
Today's Customer Choice PC remains inefficient, regardless of its excellent performance. Overclocking actually improves its efficiency rating, since performance scales upward at a higher rate than power.
- The Ultimate Honor: A Top Reader Ranking
- The Honored List: Your Picks, Picked By Tom's
- Building Your Beast
- Tuning The Components By Overclocking
- Test Settings And Benchmarks
- Benchmark Results: 3DMark And PCMark
- Benchmark Results: SiSoftware Sandra
- Benchmark Results: Battlefield 3 And DiRT 3
- Benchmark Results: Skyrim And StarCraft II
- Benchmark Results: Audio And Video Encoding
- Benchmark Results: Productivity
- Paying The Price In Power And Efficiency
- So, Is The Customer Always Right?