Nvidia GeForce GTX 650 Ti Evaluate

It's been more than six months since Nvidia launched its Kepler architecture, and we've finally seen the GTX 600 series hit cheaper price points and deliver higher value with every step. In August, the company shipped its GK104-based GeForce GTX 660 Ti for $ 300, which was about 13% slower than the $ 400 GTX 670 and around 33% cheaper at the same time – unmatched value at the time -Relationship.

We saw a rerun of this episode just weeks later when Nvidia made its way into the sub-300 market. The company's GK106-based GTX 660 was launched for $ 230 and ended up right between AMD's mid-range offerings. Not only was the GTX 660 14% slower and 23% cheaper than the GTX 660 Ti, it also offered more value than the Radeon HD 7870 while being in line with the 7850's price-performance ratio.

After attacking the middle and upper class, Nvidia has set its sights on the below $ 200 range and unleashes its GTX 650 Ti. At 150 US dollars, the new addition is around 34% cheaper than last month's GTX 660 and around 7% more expensive than the Radeon HD 7770, which brings in around 140 US dollars depending on the features and discount.

Interestingly, the GTX 650 Ti is based on the same GK106 architecture as last month's GTX 660, although the GPU was downgraded significantly in the former. The GTX 650 Ti has one less SMX unit, which results in 20% fewer CUDA cores. In addition, it has 20% fewer TMUs and 33% fewer ROPs. The memory bus was reduced from 192 bits to 128 bits, reducing the memory bandwidth by 40% from 144.2 GB / s to 86.4 GB / s.

These drastic reductions have led many to wonder if the GTX 650 Ti will actually be worth $ 150, as the under $ 200 market is still heavily populated with many competent cards from the previous generation. If the newcomer goes down, it will be the first disappointment in Nvidia's Kepler lineup, and to some extent it will help secure AMD's position within the budget range. Let's see if the GTX 650 Ti sinks or floats …

Gigabyte GTX 650 Ti in detail

Nvidia has provided images of the GTX 650 Ti reference board, which appears to be no longer than a PCI Express x16 slot and requires a single 6-pin PCIe power connector. What we have on hand, however, is very different. Although the printed circuit board of Gigabyte's GeForce GTX 650 Ti (N65TOC-2GI) is also very short, the two-slot cooler increases the overall length of the card to 23.5 cm, which is only slightly shorter than that of the GTX 660 Ti.

The GTX 650 Ti's GPU has 768 CUDA cores (192 fewer than the GTX 660), which means there are 4 SMX units. The TAU count has been reduced from 80 to 64 on the GTX 660, while the ROPs have been reduced from 24 to just 16.

The storage subsystem has also been downgraded compared to the GTX 660 with three 64-bit controllers for a 192-bit wide bus. The GTX 650 Ti drops a controller, resulting in a 128-bit wide bus.

In addition, Nvidia's specification halves the storage capacity from 2048 MB to 1024 MB, although Gigabyte has still equipped its GTX 650 Ti with 2048 MB of memory, which is clocked at Nvidia's specified 1350 MHz (5400 MHz DDR) and therefore the company's memory specification corresponds to bandwidth at 86.4 GB / s.

Nvidia's specification for the base clock frequency is 925 MHz, while the boost clock has been deactivated for the GTX 650 Ti. Gigabyte has overclocked the base clock to 1032 MHz, which is an increase of 12% compared to the standard clock rate.

What makes the Gigabyte iteration unique is the WindForce 2X cooler, which uses two 75mm ultra-quiet PWM fans attached to a custom case. Under these fans is a massive heat sink that is 8 inches long, 8 inches wide, and 1.5 inches thick. In addition, two 6 mm thick heat pipes are used for heat dissipation.

To get enough juice to the card, Nvidia needs a 6-pin PCI Express power connector – identical to the HD 7850 and 7770. Nvidia also says that those who want to use a single GTX 650 Ti will need a 400-watt power supply or more should have.

In contrast to the GTX 660, the GTX 650 Ti does not support SLI, so there is no connection on top of the card. The only ports are on the I / O control panel, where you'll find two dual-link DVI-I ports, a single HDMI 1.4a port, and a VGA port. Note that the DisplayPort socket is not present in the Gigabyte GTX 650 Ti.

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