As you may have guessed, the GeForce GTX 750 Ti is the faster version and basically both are aiming at the same market: mid-range PC graphics cards. The NVIDIA GeForce 650 Ti requires a 6-pin power connector which effectively prevents it from being installed in entry-level PCs with 300W connectors that were designed to run only with integrated (or otherwise wimpy) graphics.
Both GeForce GTX 750 Ti and GTX 750 cards do NOT require a 6-pin power connector and is built for a TDP (Thermal Design Point) of less than 60 Watts, so they run using the PCI-E power, which is great for virtually anyone who wanted to vastly improve their gaming (or video encoding) capabilities without getting a new PC. some of the first boards to appear are tiny, and they open a lot of options in terms of PC upgrades or mods.
"THE GEFORCE GTX 750 WILL LEAVE INTEGRATED GRAPHICS (VERY) FAR BEHIND"This is actually huge because when you go from an integrated graphics to a graphics card like these, the game frame rates can jump by 5X or 6X. Obviously it depends on your actual configuration, but there is no question that even the GeForce GTX 750 will leave integrated graphics (very) far behind.
But speed is not all. Integrated graphics (mostly from Intel) doesn’t get any of the usual NVIDIA GeForce features that come with all recent GeForce cards, like GPU accelerated Physics, NVIDIA ShadowPlay which records your game in realtime so that you can share your best gaming moments on Youtube or Twitch.
G-Sync is also an interesting one: this NVIDIA proprietary technology allows the GPU to control the effective refresh rate of the screen to deliver smooth animations even when not hitting the typical 60 FPS speed. This is particularly useful to mid-range GPUs because their performance tends to fluctuate more below 60FPS.
And of course, NVIDIA will be quick to point out that only its cards are compatible with the NVIDIA Shield game console. It’s true, although I don’t think that this will affect sales that much. Overall, and assuming that pricing stays within the $120-$160 range depending on configuration, this seems like an excellent way to upgrade a PC that wasn’t designed for gaming or heavy multimedia usage. Battlefield 4 and other intensive games are now within reach of a lot more people.