Low power technologies unique to the PowerVR architecture such as TBDR (tile-based deferred rendering), PVRTC and PVRTC2 texture compression support, and a separate hardware 2D core all contribute to sustained performance and decreased power consumption.
By using PowerVR GPUs, Imagination’s silicon partners like Allwinner do not run into this problem. PowerVR is the lowest power GPU in its class, ensuring users get the best possible experience for hours of enjoyment. This process of constantly having to adjust a GPU’s working frequency is known as thermal panic linked throttling and it leads to significant fluctuations in the overall experience and chipset performance as the system toggles for example from 600MHz to 300Mhz or even lower to cool the silicon down.
Heat measurements from Korean website Įnd users don’t appreciate a hot tablet or wildly fluctuating performance as thermal management cuts in or out. We’ve seen cases where the temperature rises so high that the tablet quickly becomes impossible to hold, while the thermal management on the chip cuts in (if it was not earlier disabled to mislead even more), plummeting performance to a fraction of their claimed benchmark speeds. 10 or 15 minutes – and see what happens to the temperature of the product and the speed of the benchmark. The trick here is simple: make sure the benchmark runs for the time a typical user will be using the tablet – e.g. Not only does this give a highly distorted view of what real users will experience, it also gives an unrealistic impression of what the chip is actually capable of. We’ve seen competitors go to extreme lengths to compete with PowerVR GPUs and claim superior performance by ramping up clock speeds just to run benchmarks.
#ALLWINNER A33 CPU BENCHMARK SKIN#
Device temperature should not be massively above body temperature… and definitely not near skin burning temperature. This leads to dangerous levels of heat (think 72 to 100+ degrees Celsius) which is unacceptable in practical usage. This is an extremely important point for computing platforms.īecause competing solutions are inherently inefficient (essentially brute force designs), they must rely on overclocking to extreme frequencies to provide somewhat decent performance. These devices cannot afford to fit a large battery as their bigger counterparts do, but must still provide high performance computing within this limited power envelope.Īs graphics processor units (GPUs) increasingly become the driving force behind SoC processing, scaling the number of graphics IP cores becomes a careful balancing act between performance, power and area requirements.īy choosing a PowerVR SGX544MP2 from Imagination for its A31 and A31s platforms, Allwinner have seen more than 50% increases in graphics and compute performance compared to competing solutions with twice as many cores, running at double the frequency, while keeping power consumption significantly lower. Power consumption is critical for mobile devices, especially for smartphones, smaller tablets and phablets. Get the most out of your battery and avoid heat issues with PowerVR GPUs IPad Mini GPU: SGX543MP2 (two cores) (4th generation) GPU: SGX554MP4 (four cores) (iPad 3) GPU: SGX543MP4 (four cores) V812 and Onda V972 have an SGX544MP2 (two cores) GPU PowerVR graphics give the quad-core Allwinner A31s a competitive edge The same benchmark against the high-end Google offering and also against the latest Apple tablets is showing that except the iPad Mini the Onda tablets are much less performing in terms of GPU: Note that Onda V972 has a Retina display like iPad 3 and 4, so the onscreen graphics performance is much less satisfactory. Which has been repeated in Allwinner A31 articles as: – First quad-core A7 Tablet launch review with the following slide: – Onda V972 – Apple iPad 4th Generation Alternative – Core post: Imagination Technologies becoming the multimedia IP leader for SoC vendors-Update: its outlook turning bleak On the ‘Experiencing the Cloud’ trend-tracking blog:
– Allwinner A31 SoC is here with products and the A20 SoC, its A10 pin-compatible dual-core is coming in February 2013 Quad-core Cortex-A7 CPU utilising 40nm ARM POP Technology.Update: A31 Introduction by Allwinner Technology Co., Ltd OR The AllWinner A31 SoC has PowerVR graphics, is ready for your New Year 4K resolutions OR PowerVR graphics give the quad-core Allwinner A31s a competitive edge
0 kommentar(er)
