Not long ago we reported that AMD is preparing a fresh breed of mid-end GPUs codenamed “Tonga”. Today, VideoCardz have finally got their hands on some pictures of the upcoming custom variants of Radeon R9 285. Although the specifications remain unconfirmed but the Radeon R9 285 will land somewhere between Radeon R9 280 and R9 280X. It will feature the latest Tonga Pro GPU while the faster chip, Tonga XT will be reserved for Radeon R9 285X.
AMD Radeon R9 285 “Tonga” Custom Variants
Alleged specifications of Radeon R9 285 include 32 compute units with 2048 shaders, 128 TMUs and 32 ROPs. The GPU will feature 2 GB GDDR5 memory spread across a 256-bit memory interface. It will be faster compared to Tahiti Pro but slightly slower than Tahiti XT GPU. The GPU clock speed is reported to be 918 MHz while the memory will be clocked at 5500 MHz delivering up to 176 GB/s bandwidth.
Almost all the custom variants of Radeon R9 285 have similar specifications except for the cooling solution. The pictured custom variants feature 2 x DVI ports, 1 x HDMI port and 1 x DisplayPort. Tonga will also make use of the XDMA CrossFireX technology instead of the traditional CrossFireX connectors. Radeon R9 285 will also incorporated new UAV Ordering and FCR technologies exclusive to Tonga and new GPUs.
Radeon R9 285 is a relatively small card compared to R9 280 and R9 270. A mini-ITX variant similar to ASUS’s DirectCU Mini NVIDIA GPUs is also expected after launch. XFX, Sapphire and HIS have introduced their own dual-fan cooling solutions. XFX uses its in-house Double Dissipation cooler, Sapphire uses its Dual-X cooling solution and HIS uses its IceQX2 dual-fan cooling solution for Radeon R9 285 GPUs.
Radeon R9 285 should launch in the next two weeks and no reference design is expected. As for the price, Radeon R9 285 will be in the sub $200 category similarly priced to the current Radeon R9 280.