AMD A8-7600 Kaveri APU

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CPU Energy Efficiency (Discrete Graphics)

Power consumption on discrete graphics more or less mirrored what we saw when using the integrated graphics platform. Compared to Richland, there was a small boost in efficiency on light load and significant increase on heavy load. Each new family of APUs improved over the previous in this regard but it's taken three years for AMD to finally match up to low power consumption of Sandy Bridge.

For users with balanced workloads, we've determined what we call the "average power consumption" which assumes the system is used half the time for light load activities (an average of idle and H.264 playback) and the remaining half for heavy load (an average of the power consumption used running our six benchmarks). We believe this is a very common usage pattern for an average PC — they are often left on for long periods of time, doing little to no work.

In this scenario, the A8-7600 at 45W edges out the i5-2400S by 3W, and at 65W, holds a 4W advantage over the i5-2500K.

For users with heavy workloads, the total power consumed while running our benchmark suite is of pertinent interest. The total power takes into account the energy efficiency of each CPU while running our benchmark tests as well as how quickly they complete each task. This simulates the power draw of a machine that is purely for doing work and shuts down when its job is finished.

In this metric, the A8-7600 gets a sizable bump over Richland but without better CPU performance, it still doesn't come close to matching Intel's offerings. Parity is still a long ways away.

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