Intel Kaby Lake-G & AMD 4GB HBM GPU Pictured, Is This Vega 11?

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Nov 10, 2017

Intel and AMD sent shock-waves throughout the tech sphere last Monday when they announced a brand new, first of its kind, product featuring Intel’s Kaby Lake CPU microarchitecture and a discrete Radeon Vega graphics chip from AMD.

The new product is expected to debut sometime in the first half of next year, with Intel teasing more details in the first quarter of 2018. The new multi-chip module will go into high performance, light and thin mobile designs.  Very few specifications of the new product have been announced to date. One detail that Intel has confirmed is that the GPU will feature 4GB of second generation High Bandwidth Memory.

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Intel Kaby Lake-G & Mysterious AMD Radeon GPU Pictured

A photo of the new custom Intel-AMD chip has been spotted by the folks over at Bits & Chips.
The package includes three dies. You can see the first of the three on the left, that’s the Kaby Lake CPU die. On the right we see a package within a package, those two dies are AMD’s Vega graphics chip and the 4GB of second gen High Bandwidth Memory.

Intel Kaby Lake-G & AMD Radeon 4GB HBM GPU

The AMD graphics chip is clearly significantly larger than the Kaby Lake die, and that’s for good reason.  While AMD hasn’t announced the specifications of this GPU yet, we’ve managed to figure that part ourselves thanks to some sleuthing and stitching info together.

The GPU has been leaked more than a few times on a number of benchmarking databases, including 3DMark. It features, at least in one configuration, 24 Vega compute units with a total of 1536 stream processors. We’re currently unaware if this is the highest end configuration of the die or whether a higher core count version exists, so stay tuned for that.

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Depending on the entry spotted in 3DMark the GPU engine operates at anywhere between 1+ and 1.2GHz. The exact figure is still unknown because the chip is still in its post-silicon engineering stage and the clock speeds of the final product will invariably be different. There’s also some variance in the HBM2 clock speeds depending on which engineering sample we’re talking about. Some have HBM2 clocked at 700MHz and others at 800MHz. Again, none of these figures are final and we won’t know for sure until the product is officially out the door next year.

What these figures do tell us is that this is going to be one hell of a chip – ~3.3 TFLOPS ~ with performance rivaling that of the PlayStation 4 pro, making it the most powerful non-console APU we’ve seen to date.

AMD’s Vega 11 In The Flesh ?

If you’ve been following the GPU leak scene for a good while you’re likely asking yourself whether what we’re looking at is a customized version of the fabled Vega 11 GPU and there’s a good chance the answer to that question is yes.

We’ve heard way back that AMD was working on a second Vega GPU die designed specifically for mobile devices that would fall under its Vega 10 flagship. Based on the numerous leaks we also know that Vega 11 will feature a single stack of 4GB HBM2 and arrive sometime in late 2017. Additionally, reports emerged back in September that Vega 11 was entering production, which happens to be just in time for Intel’s product launch early next year.

If it looks like a duck, swims like a duck, and quacks like a duck, then it’s probably a duck. In other words, everything we know about Vega 11 matches this mysterious custom Vega GPU. Stay tuned, looks like we will be seeing more of Vega 11 sooner rather than later.

GPU Polaris 10 Vega 10 Vega 11 (Mobile) Vega 20
Year 2016 2017 2018 2018
Graphics Card RX 480, 470 Vega FE, 64, 56 TBA (Vega 24,20) TBA
Process 14LPP 14LPP 14LPP/12LP 7nm
Transistors In Billions 5.7 12 TBA TBA
Stream Processors 2304 4096 1536 4096 (rumored)
Performance 5.8 TFLOPS Up To 13 TFLOPS TBA 12+ TFLOPS
TDP 150W Up To 290W TBA ~150W
Memory 8GB GDDR5 Up To 16GB HBM2 4GB HBM2 32GB HBM2
Memory Bus 256bit 2048bit 1024bit TBA
PCI Express 3.0 3.0 3.0 4.0
Bandwidth 256 GB/s 484 GB/s TBA 1 Terabyte/s