There are a lot of mainboards out there with a variety of onboard controllers and an extensive list of functions. Of course, there are simpler and even more affordable mainboards, but perfection like Gigabyte GA-Z77-D3H is a very rare occurrence among them.
Let’s take a closer look at the most efficient single-array tower cooler out there designed for six-core Intel processors.
As spring gets ready to roll over to summer, last week we saw the first phase of NVIDIA’s annual desktop product line refresh, with the launch of the GeForce GTX 780. Based on a cut-down GK110 GPU, the GTX 780 was by most metrics a Titan Mini, offering a significant performance boost for a mid-generation part, albeit a part that forwent the usual $500 price tier in the process. With the launch of GTX 780 the stage has been set for the rest of the GeForce 700 series refresh, and NVIDIA is wasting no time on getting to the next part in their lineup. So what’s up next? GeForce GTX 770, of course.
In our closing thoughts on the GTX 780, we ended on the subject of what NVIDIA would do for a GTX 770. Without a new mid/high-end GPU on the horizon, NVIDIA has instead gone to incremental adjustments for their 2013 refreshes, GTX 780 being a prime example through its use of a cut-down GK110, something that has always been the most logical choice for the company. But any potential GTX 770 is far more nebulous, as both a 3rd tier GK110 part and a top-tier GK104 part could conceivably fill the role just as well. With the launch of the GTX 770 now upon us we finally have the answer to that question, and the answer is that NVIDIA has taken the GK104 option.
What is GTX 770 then? GTX 770 is essentially GTX 680 on steroids. Higher core clockspeeds and memory clockspeeds give it performance exceeding GTX 680, while higher voltages and a higher TDP allow it to clock higher and for it to matter. As a result GTX 770 is still very much a product cut from the same cloth as GTX 680, but as a fastest GK104 card yet it is a potent successor to the outgoing GTX 670.
This mainboard will suit perfectly for a contemporary system, it doesn’t boast anything extraordinary, but also doesn’t have any functionality limitations of any kind. There are more complex and more expensive, as well as simpler and more affordable products out there, while Asus P8Z77-V LK is a regular mainboard, most optional solution, the so-called “golden medium”.
As the two year GPU cycle continues in earnest, we’ve reached the point where NVIDIA is gearing up for their annual desktop product line refresh. With the GeForce 600 series proper having launched over a year ago, all the way back in March of 2012, most GeForce 600 series products are at or are approaching a year old, putting us roughly halfway through Kepler’s expected 2 year lifecycle. With their business strongly rooted in annual upgrades, this means NVIDIA’s GPU lineup is due for a refresh.
How NVIDIA goes about their refreshes has differed throughout the years. Unlike the CPU industry (specifically Intel), the GPU industry doesn’t currently live on any kind of tick-tock progression method. New architectures are launched on new process nodes, which in turn ties everything to the launch of those new process nodes by TSMC. Last decade saw TSMC doing yearly half-node steps, allowing incremental fab-driven improvements every year. But with TSMC no longer doing half-node steps as of 40nm, this means fab-drive improvements now come only every two years.
In lieu of new process nodes and new architectures, NVIDIA has opted to refresh based on incremental improvements within their product lineups. With the Fermi generation, NVIDIA initially shipped most GeForce 400 Fermi GPUs with one or more disabled functional units. This helped to boost yields on a highly temperamental 40nm process, but it also left NVIDIA an obvious route of progression for the GeForce 500 series. With the GeForce 600 series on the other hand, 28nm is relatively well behaved and NVIDIA has launched fully-enabled products at almost every tier, leaving them without an obvious route of progression for the Kepler refresh.
So where does NVIDIA go from here? As it turns out NVIDIA’s solution for their annual refresh is essentially the same: add more functional units. NVIDIA of course doesn’t have more functional units to turn on within their existing GPUs, so instead they’re doing the next best thing, acquiring more functional units by climbing up the GPU ladder itself. And with this in mind, this brings us to today’s launch, the GeForce GTX 780.
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.