![]() ![]() Less advanced power and cooling systems can be used, which translates into better reliability and lower noise level.Įnergy efficiency has been improving for years, becoming even more important after the process of transitioning to new manufacturing technologies has slowed down. Moreover, lower power consumption makes a graphics card with better consumer properties, other factors being the same. The latter chip can be modified to have more computing subunits or higher clock rates and beat the first chip in performance because the 300W chip has no reserves for similar modifications due to its already excessive power draw. For example, suppose we have two chips with the same performance, but one consumes 300 watts whereas the other, 150 watts. The saved watts can be spent to increase clock rates or the number of computing subunits. Some people argue that performance matters more than energy efficiency but it turns out that energy efficiency is actually the key to high performance. There will be some additional modifications in the second-generation Maxwell but, like in the first generation, the focus will be on energy efficiency. Heaven 4.The second generation of Maxwell-based GPUs will be rolled out in the second half of this year and will supposedly consist of three chips codenamed GM200, GM204 and GM206 – all manufactured on new 20nm technology. While the actual gaming/graphical performance isn't really offering much in the way of improvements at this mainstream price point just take a look at the difference in power draw and peak temperatures. And if you've been sitting on a lowly machine without the capacity for a decent graphics card before, now you can be gaming happily at 1080p without needing to upgrade your PSU and for only just over $150 / £100. The GTX 800 series cards are based on a smaller production process - 20nm versus the GTX 750 Ti's 28nm - and that should increase power efficiency even further.īut right now this is a great option for anyone looking for a well-priced, low-power upgrade for their rig. There will be half-height boards to fit ultra small form factor machines, single slot cards for that slimline look the 8800GT sported to such good effect, and overclocked versions with heftier coolers and external power connectors for extra oomph.Īs well as representing an excellent little upgrade card budget rigs the GTX 750 Ti also gives us a taste of what's to come with the higher-end, second generation Maxwell GPUs. That means we should see the GTX 750 Ti coming in with very different designs. With no need for external power anyone can drop this card into an old off-the-shelf machine from PC World - so long as it's got a spare x16 PCIe slot - and get an impressive performance boost. This in turn means the GTX 750 Ti is an upgrade that's more widely accessible than something like the GTX 650 Ti Boost, or competing AMD cards, can manage. ![]() You don't even need to have a separate PCIe power connector either as it can draw its 60W TDP from the 75W on offer from the PCIe slot on your motherboard. That means GTX 750 Ti boards can be both tiny and relatively powerful and ideal for really small form factor, 1080p machines. The GTX 750 Ti beats both considerably, coming in at a maximum of 54✬ and 164W. The GTX 650 Ti Boost peaks at around 72✬ and 225W in terms of total platform power and the R7 260X tops 83✬ and some 192W. The Radeon R7 260X is both hotter and more power hungry and performs similarly in-game. ![]() It's the same story when you compare with a competing AMD card in the same area. So, while gaming performance hasn't moved on from similarly-priced Nvidia cards of the last generation, the power requirements and temperatures have dropped off considerably. Nvidia estimate each CUDA core is now some 35% quicker than with the Kepler architecture. That does mean each SMM only contains 128 CUDA cores as opposed to the 192 CUDA cores of the old SMX, but the increased control logic makes them far more efficient. Each of these clusters has 32 CUDA cores and their own control logic. ![]() Where the Kepler's GPU are made up of Streaming Microprocessors (code-named SMX) with 192 CUDA cores in each with one set of control logic per SMX, the Maxwell chips separate each of its own Streaming Microprocessors (code-named SMM) into four separate processing clusters. Nvidia has streamlined its GPU internally. But a quick look at the power demands and temperature of this new card will tell you immediately that it's a different beast. Given the lack of a performance boost, you'd you'd be forgiven for assuming Nvidia had been following AMD's recent line of simply re-badging old silicon with new naming schemes. ![]()
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