Against the background of yesterday’s news about inflating the retail price of graphics cards from AMD’s very interesting to look for the latest news from Nvidia. “Green Team” introduces two new cards, the GTX 750 and GTX 750 Ti, which may be of interest not only an interesting price, but also a completely new architecture Maxwell, which, though made in the same 28-nanometer process which GPUs , allows for a much greater number density of cores on the same surface, and in addition it is very efficient in terms of energy consumption.
When the premiere NVIDIA Kepler architecture unveiled their plans for development, not really herself unless seemed to realize how much time announced for 2014 architecture Maxwell may be different. Now, however, you can see that there has been a complete reversal in the design process, in which the first projektowa?o the flagship desktop GPU, then skalowa?o them down to the cards less efficient, version for laptops, and finally the version for embedded devices, tablets, and phones. In the case of Maxwell’s design began with the design of graphics cores for the best possible performance ratio of energy consumption – and then scaling them up.
While retaining a 28-nanometer process technology (the manufacturer had no choice – his executor, TSMC will be ready with the production process of 20 nm at the earliest in 2015), the redesign of core structure resulted in an increase in the number of streaming multiprocessor and reduced energy consumption. It was based primarily on giving up the block SMX grouping in architecture Kepler 192 CUDA cores. He was replaced by block SMM, grouping 128 CUDA cores (of course, such SMM-s is more). As a result, Maxwell brings 66% more CUDA cores on the ankle, which is suddenly about 25% larger than the previous generation GPUs. Has also increased the cache of 256 KB in Kepler to 2 MB in Maxwell. As a result, the new GPUs provide even have 2.3 times the performance of previous generation systems.
From the Maxwell functionality does not bring anything new. The architecture is of course compatible with Direct3D 11.0, support also has some features of Direct3D 11.1 and 11.2 (although from the perspective of players do not have it today even more important). It also provides full support for well-known from Kepler’s G-Sync technology, GameWorks or NVENC. From a user perspective it simply means that the new cards will be just fine with all fared issued earlier games or tools.
Support does not mean a simple transfer of Kepler. In the case of a video encoder NVENC Maxwell efficiency gain is surprisingly high, even doubled, which means that Nvidia graphics cards are able to encode video eight times faster than real time. For the players are not really important message, but appreciate that all those engaged in processing and video transcoding. Maxwell also brings partial support for hardware video decoding HEVC (H.265), de facto standard for 4K resolution, as well as a special mode of energy, designed to minimize power consumption when playing media.
Card Comparison architecture Kepler and Maxwell
strategy “mobile first” resulted, above all, felt more efficient in terms of energy consumed. NVIDIA claims that the ratio performance / watt is better than Maxwell twice in systems architecture Kepler and four times better than the Fermi systems. To achieve this effect, while maintaining the same technological process, it has become possible thanks to optimizations at every level, from reducing the number of shared units between blocks SMM, by improving communication between the blocks and cache performance, to improve the level of the same transistors.
All these improvements in land available on sale at all major retailers cards GTX 750 and GTX 750 Ti. Performance and benchmarks already confirmed already carried out by sites such as AnandTech, we love it. Also like us to energy efficiency, the certificate may be even that the reference GTX 750 card does not require additional power beyond that of PCI-Express. Even more, however, we like Suggested price: 489 z? for model GTX 750, 549 z? for model GTX 750 Ti with 1 GB of memory and 599 z? for model GTX 750 Ti with 2 GB of memory.
At the end of a curiosity: Maxwell are the first Nvidia cards that are doing quite well in the calculation kryptowalut scrypt based algorithm (such as litecoin). In terms of pure performance, they still do not have a chance here with Radeonami, but 265 kH / s CUDAminerze for GTX 750 Ti with power consumption of just 60 watts makes this a pretty interesting solution. For comparison Radeon R9 290 is able to provide about 850 kH / s while consuming 350 W.
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