AMD Radeon Vega 8 Mobile GPU Lacks HBM 2

/ 1 year ago

After using variations of GDDR and DDR memory for years, the industry is finally moving on. AMD starting things off with HBM based on their GCN architecture. After testing to waters, the company moved onto HBM 2 with their new Vega GPUs. In addition to desktop Vega, AMD is releasing mobile variants starting with Vega 8. According to new information, it appears that Vega 8 will not be using HBM 2.

With Vega, AMD is targetting a large range of mobile GPU performance. Despite keeping the Vega moniker, Vega 8 is no powerhouse. The key clue is the name which denotes 8 CUs or 512 shader units. Current APUs have the same amount of shaders in their iGPU as well. Keeping in line with that level of performance, the memory used for Vega 8 won’t even be dedicated GDDR or DDR but system DDR4.

AMD Vega 8 mGPU

Vega 8 Performance Limited by System Memory

By cutting out any dedicated memory, AMD is going for maximum efficiency and cost-cutting. Vega 8 will be a counter to the MX 110 and MX 130 and a decent but not overwhelming upgrade over Intel iGPUs. Depending on firmware version, the GPU will be able to address from 512MB to 1GB of system DDR4. This puts performance roughly in the same area as AMD’s latest Zen and Vega APUs which also use system DDR4 memory.

While it is nice to see Vega arrive as a mobile dGPU, Vega 8 has a very small niche. AMD is pushing out new Ryzen APUs with similar iGPU performance and even Intel is bundling in Vega for their chips. With the advances made in Vega however, the new chip should offer stronger performance than expected compared to Nvidia. It will be interesting to see how performance plays out in the real world.

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4 Responses to “AMD Radeon Vega 8 Mobile GPU Lacks HBM 2”
  1. Sykobee says:

    “While it is nice to see Vega arrive as a mobile dGPU, Vega 8 has a very small niche.”

    Vega 8, and Vega 10, are the brand names of the Raven Ridge iGPU.

    This is not a discrete GPU.

  2. ET3D says:

    What Sykobee said. See comments on the TechPowerUp page. The HP ENVY x360 has a Ryzen 5 2500U.

    I think it’s best to take this news item down.

  3. John says:

    This article is brought to you by AMD bears! Enjoy responsibly

  4. Chicotomo says:

    AMD Vega 8 is crippled by system DDR4? but yet it offers upto 2x the performance of Intel’s latest mobile iGPU. That too at a better pricepoint. This post is pathetic. And this is the 2500U, everybody knows that AMD’s 2700U will dominate Ultrabooks just like the 128 thread Epyc servers are now eating Intel’s datacenter market.

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