This is a very volatile time for Intel. In an ARM-less vacuum, Intel’s Haswell architecture would likely be the most amazing thing to happen to the tech industry in years. In mobile Haswell is slated to bring about the single largest improvement in battery life in Intel history. In graphics, Haswell completely redefines the expectations for processor graphics. There are even some versions that come with an on-package 128MB L4 cache. And on the desktop, Haswell is the epitome of polish and evolution of the Core microprocessor architecture. Everything is better, faster and more efficient.
There’s very little to complain about with Haswell. Sure, the days of insane overclocks without touching voltage knobs are long gone. With any mobile-first, power optimized architecture, any excess frequency at default voltages is viewed as wasted power. So Haswell won’t overclock any better than Ivy Bridge, at least without exotic cooling.
You could also complain that, for a tock, the CPU performance gains aren’t large enough. Intel promised 5 - 15% gains over Ivy Bridge at the same frequencies, and most of my tests agree with that. It’s still forward progress, without substantial increases in power consumption, but it’s not revolutionary. We compare the rest of the industry to Intel’s excellent single threaded performance and generally come away disappointed. The downside to being on the top is that virtually all improvements appear incremental.
The fact of the matter is that the most exciting implementations of Haswell exist outside of the desktop parts. Big gains in battery life, power consumption and even a broadening of the types of form factors the Core family of processors will fit into all apply elsewhere. Over the coming weeks and months we’ll be seeing lots of that, but today, at least in this article, the focus is on the desktop.
After a very long and anxious wait we can finally take a close look at one of the fourth generation Core processors for desktops, which is based on the new Haswell microarchitecture. Significantly higher performance, better energy-efficiency, excellent overclocking – all this isn’t the case. What happened?
Anand is covering AMD’s latest Kabini/Temash architecture in a separate article, but here we get to tackle the more practical question: how does Kabini perform compared to existing hardware? Armed (sorry, bad pun) with a prototype laptop sporting AMD’s latest APU, we put it through an extensive suite of benchmarks and see what’s changed since Brazos, how Kabini stacks up against Intel’s current ULV offerings, and where it falls relative to ARM offerings and Clover Trail. But first, let’s talk about what’s launching today.
Microprocessor architectures these days are largely limited, and thus defined, by power consumption. When it comes to designing an architecture around a power envelope the rule of thumb is any given microprocessor architecture can scale to target an order of magnitude of TDPs. For example, Intel’s Core architectures (Sandy/Ivy Bridge) effectively target the 13W - 130W range. They can surely be used in parts that consume less or more power, but at those extremes it’s more efficient to build another microarchitecture to target those TDPs instead.
Both AMD and Intel feel similarly about this order of magnitude rule, and thus both have two independent microprocessor architectures that they leverage to build chips for the computing continuum. From Intel we have Atom for low power, and Core for high performance. In 2010 AMD gave us Bobcat for its low power roadmap, and Bulldozer for high performance.
Both the Bobcat and Bulldozer lines would see annual updates. In 2011 we saw Bobcat used in Ontario and Zacate SoCs, as a part of the Brazos platform. Last year AMD announced Brazos 2.0, using slightly updated versions of those very same Bobcat based SoCs. Today AMD officially launches Kabini and Temash, APUs based on the first major architectural update to Bobcat: the Jaguar core.
By combining their energy-efficient Celeron 847 processor with an NM70 chipset Intel created a new desktop platform for SFF PC, which may easily push Atom and Brazos of the pedestal. Our today’s test session will show if the new product with Core microarchitecture is capable of competing against specialty energy-efficient and inexpensive processors.
Inexpensive hybrid processors become better and faster. Which one should be your today’s choice? Should you go for an AMD A10, A8, A6 or A4, or prefer an Intel Core i3, Pentium or Celeron? We carried out an extensive test session of Socket FM2 and LGA 1155 platforms with integrated graphics and are ready to answer this question for you once and for all.