Thursday, November 20, 2014
Comparing tablet chip performance has never been easy. Mobile benchmarks have mostly been limited to just a single platform, but now a new test by a respected outfit—albeit one that’s frequently been accused of pandering to Intel—puts ARM-based processors from Apple and Nvidia ahead of Intel’s silicon.
BAPCo’s TabletMark V3, announced last week, shows that Google’s new Nexus 9 and Apple’s iPad Air 2 outperform an Atom-powered tablet from Lenovo.
TabletMark V3 is the new free productivity benchmark that runs on no fewer than four operating systems. The new benchmark is the first from BAPCo to support anything other than a Microsoft operating system. Previous iterations of TabletMark have supported Windows 8, Windows 8.1 and Windows RT, but now version 3 finally adds iOS and Android compatibility.
Despite the thumping the Haswell CPU in the Surface Pro 3 gives, the real eye opener is the Bay Trail Atom CPU taking a back seat to Nvidia's Tegra K1 and Apple's A8X in the TabletMark V3. The test suite is designed to measure real-world browsing, email, photo and video chores on tablets, and it's already freely available in the Microsoft store and Android Play. The iOS version is finished, but it remains stuck in the famously slow Apple approval process.
In a recent press demonstration, BAPCo showed off the new TabletMark running on an Apple iPad Air 2 with its A8X chip; the Google Nexus 9 with its Nvdia Tegra K1; and a Lenovo Thinkpad 10 with a quad-core Intel Atom Z3795.
The 64-bit iPad Air A8X easily out performs the 64-bit Tegra K1 in the Nexus 9 in BAPCo’s newly released TabletMark V3. The real shocker is how it motors past Intel’s Bay Trail-based Atom SoCs. The real shocker is where Intel’s Bay Trail-based Atom Z3795 falls in line: last. Although it is slightly faster than the iPad 2 Air’s A8X in the browsing and email tests, it takes a distant third place in the photo and video workloads. The Tegra K1, meanwhile, actually represents Nvidia well by beating Intel’s Bay Trail chip.
Yes, what we have are two ARM chips from Apple and Nvidia acing Intel’s top budget mobile chip. To anyone who’s been following the benchmarking wars, this might come as a bit of a surprise, as BAPCo has long been accused of favoring Intel parts.
Despite its prowess as a gaming chip, the Tegra K1 comes up on the top of the pile in BAPCo’s new TabletMark V3 test in general browsing and email use. AMD famously took its ball and abandoned its BAPCo membership in 2011—this after accusing BAPCo of cooking the PC test suite SYSMark2012 so it wouldn’t reflect real-world usage models. At the time, AMD’s main beef was that SYSMark2012 under-utilized GPUs. AMD’s case was strengthened when VIA and Nvidia also dropped their BAPCo membership.
In its defense, BAPCo said it relied on advice from application vendors on whether to use GPUs or CPUs in specific tests. Adobe, for example, advised that using the GPU to render video could cause problems. What’s more, in 2011 few apps actually supported GPU workloads.
To BAPCo, that’s all water under the bridge. It maintains that Intel only gets one vote on its board, which includes more than a dozen members. BAPCo also said it hopes AMD and ARM vendors come back with the release of TabletMark V3—a benchmark, it points out, that AMD actually helped create the process for while it was a member years ago.
Overall, the Surface Pro 3 and its Haswell CPU takes the win in TabletMark V3, but it’s not in a way anyone is likely to be able to feel.
Intel’s new Core M takes the win in the photo/video category when compared with all of the Surface Pro units we put it against. That’s not bad consdiering that it uses a third of the power of the others.
TabletMark V3 looks pretty solid as a cross-platform benchmark, but it won’t be the last word in performance testing. To make the benchmark run across all of the platforms, BAPCo had to write the apps from scratch to simulate photo, video, browsing and email. BAPCo said it used all available APIs on each platform, but many enthusiasts will still gripe that BAPCo should have used other methods. The benchmark is based on real-world use cases, but it remains something of a synthetic kludge in the end to get it to work across all the different operating systems.
That said, TabletMark V3 is the only benchmark with such widespread vendor support, and it's a pretty good tool for anyone who wants to assess tablet performance across multiple platforms.
By: DocMemory Copyright © 2023 CST, Inc. All Rights Reserved
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