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AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?

AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?

AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?

AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?

 

AMD has revealed their future GPU roadmap, giving us some key information on the planned changes in their future GPU architectures and increasing their power saving estimates for their upcoming Polaris GPUs.

Initially AMD stated that they expected a 2x increase in performance per watt when moving past the 28nm Fiji architecture used in the R9 Fury X when that GPU was announced almost a year ago. Now AMD estimates that Polaris will have a 2.5x performance per watt advantage, showing that their Polaris GPUs are performing better than was initially expected on the 14nm FinFET manufacturing process. 

The second most interesting piece of information on this roadmap is that AMD's Polaris Architecture is not listed as supporting HBM2 memory, with AMD's 2017 Vega Architecture being listed with HBM2, meaning that AMD Polaris GPUs may be sticking with HBM 1.0 for Polaris. 

  AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?   

In an interview with PCPER AMD's Raja Koduri, the head of the Radeon Technologies Group was unable to confirm or deny that this is the case, suggesting that AMD Polaris GPUs will be using this older, first generation HBM memory standard rather than newer HBM 2.0 memory.

It is expected that AMD will be saving a lot of money by using HBM 1 in Polaris, allowing them to work from the same design and memory pipeline that the used in Fiji and recoup some more of the development costs of implementing HBM with another new generation of HBM GPUs.   

 

AMD Reveals Future GPU Roadmap - No HBM2 on Polaris?   

If AMD are using HBM 1.0 in their Polaris GPUs some very interesting challenges emerge for the company, mostly when it comes to the limitations of HBM capacity, which for HBM 1.0 is 1GB per chip, which with 4 total chips in Fiji gave the Fury X a total of 4GB of VRAM. 

One possibility with HBM 1.0 is that if Polaris GPUs use a similar die size to Fiji that AMD could potentially fit more memory stacks next to the GPU, allowing the GPU to have more bandwidth and capacity by simply adding more chips, but right now it is unknown exactly have AMD have architected their upcoming Polaris GPUs. 

 

You can join the discussion on AMD's upcoming GPU roadmap on the OC3D Forums

 

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Most Recent Comments

15-03-2016, 11:50:12

NeverBackDown
Well this may mean Polaris just uses hbm1 across the lineup and the high end ones use HBM2 under a different name?There's just been no indication before that they wouldn't, it's already undergone volume production since 2016 started and these chips probably won't be out until summer. It wouldn't make sense to not use it.Quote

15-03-2016, 12:04:04

TPC
Quote:
Originally Posted by NeverBackDown View Post
Well this may mean Polaris just uses hbm1 across the lineup and the high end ones use HBM2 under a different name?There's just been no indication before that they wouldn't, it's already undergone volume production since 2016 started and these chips probably won't be out until summer. It wouldn't make sense to not use it.
Polaris will most likely use HBM1 and Vega, which specificly got the HBM2 badge on the roadmap, will be released early 2017 with HBM2.Quote

15-03-2016, 12:15:29

NeverBackDown
Quote:
Originally Posted by TPC View Post
Polaris will most likely use HBM1 and Vega, which specificly got the HBM2 badge on the roadmap, will be released early 2017 with HBM2.
Yes I can read the map... however it wouldn't make sense for reasons I stated aboveQuote

15-03-2016, 12:52:09

demonking
not surprising really, If they really are expecting 2.5x performance per watt they can push there GPU's and get good results without it. And with Nvidia not rolling out HBM on their next line up (allegedly) theres no need. They may be able to really put pressure on Nvidia if they perform well and keep the price low.

HBM might be on the entire lineup this time round instead of just the top end?Quote

15-03-2016, 13:50:04

Kaapstad
GDDR5X ?

I would rather have the above than use HBM1 again on Polaris.Quote
Reply
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