As the expected November 15th release date for AMD's Radeon RX 590 inches closer, more leaks of AIB cards have started trickling in. Sapphire's Radeon RX 590 NITRO+ is just the latest to appear. Much like the ASUS ROG STRIX version leaked earlier, Sapphire design is using a hefty cooler for what amounts to a mid-range graphics card. The design looks to be the exact same as their RX 580 NITRO+ with just a fresh coat of paint to spruce things up. They are using the same shroud, dual fans, large aluminum heatsink, and full cover backplate on both graphics cards. That said, the change to a bright blue shroud gives the RX 590 NITRO+ a unique appearance that should at the very least help it stand out against its more mundane black and white designs of the competition.In regards to actual specifications, the RX 590 features the same 2304 Stream processors, 144 TMUs (texture mapping units), and 32 ROPS (render output units) as the RX 580. This is because the Polaris 30 design used in the RX 590 is just a die shrink of Polaris 20 used in the RX 580. Obviously with a die shrink typically comes improved performance, usually via higher clock speeds. Currently, the final clock speeds for Sapphire's Radeon RX 590 NITRO+ are not known. However, if the rumored reference boost clock of 1545 MHz is correct, an overclock pushing that a step further is likely. Meaning performance should be improved compared to what we have seen in various leaks thus far.