For the CPU test, three phones scored in the 5000 range for performance,
but of the three, Intel stood out with only 0.85A of average current
versus 1.38A for the Samsung Exynos Octa, and 1.79A for the Qualcomm
Similar trends were seen for most tests. If one of the
chips scored a lower current consumption it only did so with performance
that was significantly lower. If the performance was better, the
current was higher, said ABI. The only test where a competitor matched
the performance of the Intel Z2580 was for recording 1080p video.
Samsung Galaxy S4 i377 had a lower current drain than the Lenovo K900
but this was due to the use of a separate image processor provided by
Fujitsu, said ABI.
The Samsung Exynos Octa processor, which
includes the big-little approach to processing developed by ARM,
performed well without a separate image processor in both the 1080p and
3D graphics tests; outscoring all but with proportionally higher current
compared to the Z2580 from Intel, said ABI.
that support the Intel chips inside in Lenovo K900 include: the Broadcom
BCM4330 combo IC, GPS chip from CSR plc, sensors from
STMicroelectronics and the Wolfson WM5102E audio hub, which is also
found in the Samsung Galaxy S4 i9500.
Pretty significant results from the Intel camp. I am not pro or against Intel, but this will have some impact on the naysayers out there. Unless ARM or Qualcomm et. all can make some really fast improvements in power consumption versus processor power, they could take some big hits in sales. I would be wary of my Qualcomm stock holdings.
The comparison was against the two types of processors in the Samsung S4, one of the most recently introduced phones based on ARM processors and one of the fastest ARM based units on the market. I don't know why you would not consider that a fair comparison?
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.