The NVIDIA GTX 770 reference design looked very similar to the GTX 780 – which again looked similar to the GTX TITAN before it. After having tested the custom-cooler sporting the ZOTAC GTX 770 AMP Edition, we got another custom GTX 770 in our labs from Palit called the Palit Jetstream GeForce GTX 770.The JetStream series was introduced last year with the GTX 680 and represents a factory-overclocked card with Palit's custom cooling added in.
Design and build
The Palit JetStream GTX 770 has a custom cooler design visually different from the reference GTX 770 design that resembles the flagship single GPU GTX TITAN. Palit has decided to go with a three-fan active cooling setup. Within the black-coloured plastic shroud you have an aluminium heat-sink that helps in dissipating heat away from the GPU.
The shroud around the central fan tends to protrude out on the top
There are two separate blocks of heatsinks joined by two copper tubes. Atop the heatsinks, you have three fans – a central 90 mm one surrounded by two 80 mm ones on the sides. There is some light brown colouring on the shroud in the area around the central fan. The shroud also tends to protrude out a bit from the centre. Palit has added some LED bling on the central fan. The quality of the shroud was not the best as we noticed that it would flex on applying minor pressure.
There is no backplate covering the circuitry on the rear side and there is one eight-pin and one six-pin PCIe power connector on the right hand side. Palit hasn’t changed the arrangement of the display ports from the stock GTX 770 and you have two DVI ports along with an HDMI and a DisplayPort. The card measures 254 x112 mm and appears quite massive at first glance. Safe to say that it will block the two PCIe slots beside it on your motherboard.
Palit JetStream GTX 770 sports three fans - a central 90mm one, surrounded by two 80mm ones.
The JetStream GTX 770 is a factory-overclocked card with base clock touching 1150MHz and Boost clock at 1202MHz up from 1046MHz base clock and 1084MHz Boost clock combo on the reference card. It sports 2GB of GDDR5 memory with a 256-bit memory bus-width. It packs in the same 1536 CUDA cores and 32 ROPs. Other features are similar to what you get in the GTX 780, such as GPU Boost 2.0, advanced AA modes (TXAA and FXAA) as well as full support for Shadow Play.
The rear side of the card does not have any backplate
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