We recently published a piece detailing how the Fiji XT flagship GPU will be launching with 8GB HBM. Interestingly, the same report also contains an eye brow raising comment, made in the passing. The Fiji VR Dual GPU is apparently still in the drawing board stages. In other words, we might not see it at the Computex launch event. The report states that AMD will kick start its next generation lineup with only the single GPU version in a few weeks.
AMD's Dual GPU "Fiji VR" flagship is not launching at Computex - Reports Italian Publication
Multiple reports have so far confirmed that AMD is working on not one but two separate cards for its Radeon 300 Series launch - the Radeon R9 395X2 (aka "Fiji VR") and the Radeon R9 390X (aka "Fiji XT"). However, it would appear that the Radeon R9 395X2 isn't yet ready and the details are still being worked out on the drawing board. The Fiji VR GPU is a dual GPU that has been optimized specifically for VR purposes thanks to AMD's Liquid VR technology which is focused on minimizing latency among other things. Given below is the preliminary specification comparison (unconfirmed) as purported by leaks so far:
|Wccftech||AMD Radeon R9 390X
||AMD Radeon R9 395X2||AMD Radeon R9 290X
|GPU Code Name||Fiji XT||2x Fiji VR||Hawaii XT|
|GPU Cores / Shaders||4096||2x4096||2816|
||8GB Stacked HBM||8GB/16GB Stacked HBM||4GB GDDR5|
|Memory Interface||4096 Wide IO||2x4096 Wide IO||512bit GDDR5|
|Total Memory Bandwidth||640GB/S||640GB/S per GPU||320GB/S|
|GPU Clock Speed||1.05Ghz~||1.05Ghz~||1Ghz~|
|Launch Price||$699 ?||$1499 ?||$549|
*Preliminary specifications according to leaked information.
The Liquid VR slides which showed features such as Affinity Multi GPU and the requirement of two GPUs for asynchronous rendering are one of the reasons why we think the Fiji VR GPU is coming sooner or later. Here is a quote to refresh our reader’s memory:
“Affinity Multi-GPU for scalable rendering, a technology that allows multiple GPUs to work together to improve frame rates in VR applications by allowing them to assign work to run on specific GPUs. Each GPU renders the viewpoint from one eye, and then composites the outputs into a single stereo 3D image. With this technology, multi-GPU configurations become ideal for high performance VR rendering, delivering high frame rates for a smoother experience. “
AMD will be launching it Radeon 300 series sometime around Computex and will mark the first time mainstream gaming GPUs have shipped with HBM memory. The Fiji VR Dual GPU was a very pleasant surprise and one that marks AMD's focus shift to VR Technology as a significant target for revenues. We have seen AMD’s ventures in the VR industry with the recent Oculus Rift Crescent bay demo that was running on an “unannounced Radeon flagship”, probably dual R9 390Xs.