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AMD makes its next step in GPU dominance with Vega (Page 2)

By Anthony Garreffa on Jan 5, 2017 05:49 pm CST

See. I told you - look at that headline: "the world's most scalable GPU memory architecture". Say what?! How is this so? Is it just HBM2? No - it's not just that, as AMD have always been a company that strives towards next generation technologies, and that's what Radeon Vega introduces.

Introducing High-Bandwidth Cache


Everyone until now has thought that AMD has just worked on a refreshed GPU architecture and slapped HBM2 technology inside, but it's not quite that easy - a large part of Vega is the new High-Bandwidth Cache.

We also have HBM2 technology, which provides up to 2x bandwidth per pin - a huge 1024GB/sec (1TB/sec) of VRAM, ready for your current, and next-gen games.


HBM2 provides some massive savings on the PCB of graphics cards, with a 50% smaller footprint when compared to GDDR5.

Next up, we have the High-Bandwidth Cache Controller, which has up to 512TB (yes, that's terabytes) of virtual address space.


This allows for what AMD explains as "adaptive, fine-grained data movement" - remember, Vega isn't here for gamers only, but for supercomputers and massive systems that work on super-complex dataloads.

If we look at 4K gaming on Ultra settings with titles like Fallout 4 and The Witcher 3, the difference between 'allocated' and 'accessed' VRAM - there's a large difference. You don't need as much VRAM as you think, because the game will simply chew up a bunch of it - but only uses around half of that in real-world usage.

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Anthony Garreffa

ABOUT THE AUTHOR - Anthony Garreffa

Anthony is a long time PC enthusiast with a passion of hate for games to be built around consoles. With FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with high-end, custom-built PCs. His addiction to GPU technology is unwavering, and with next-gen NVIDIA GPUs about to launch alongside 4K 144Hz HDR G-Sync gaming monitors and BFGDs (65-inch 4K 120Hz HDR G-Sync TVs) there has never been a time to be more excited about technology.

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