Xbox Series S' lower-cost 512GB SSD reduces DRAM prices too

The Xbox Series S' smaller 512GB SSD actually reduces both flash and DRAM costs, making the console cheaper to manufacture.

@DeekeTweak
Published Mon, Sep 14 2020 3:31 PM CDT

Although the Xbox Series S' PCIe 4.0 SSD delivers the same 2.4GB/sec speeds as the Series X, its size is cut in half. Microsoft says this storage reduction helped the Series S hit $299 MSRP.

Xbox Series S' lower-cost 512GB SSD reduces DRAM prices too 42 | TweakTown.com
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The Xbox Series S has a dramatically smaller 512GB NVMe SSD, and Microsoft confirms this capacity drop also dropped the console's price. What's not apparent is how the SSD helps offset GDDR6 costs, too. The Xbox Series S is effectively cheaper to make on two fronts: The smaller 512GB SSD reduces flash memory costs, and the new Velocity Architecture actually reduces DRAM costs as well.

Here's what Microsoft in a recently leaked press briefing:

"When we moved to SSD technology there was much, much higher performance. But of course that performance comes at a higher cost. More storage is always better.

"So we were kind of trying to balance the storage drive size as well as the cost and we landed on 512GB," said Xbox head of platform engineering and hardware Liz Hamren.

"The Series S also supports the Seagate storage expansion card. In addition, you can always connect your USB 3.1 drive for additional storage.

"We've also been working on a number of software features to help you more seamlessly manage your game library between the cloud and your console"

Xbox Series S' lower-cost 512GB SSD reduces DRAM prices too 10 | TweakTown.com

We also know the next-gen SSD tech was 13 years in the making. Microsoft's shift towards SSD tech helps offset higher GDDR6 DRAM costs due to its powerful and flexible Velocity Architecture.

Velocity Architecture was created specifically so Microsoft could reduce DRAM capacity by optimizing how the SSD interacts with the GDDR6 memory. The main idea is to use high-bandwidth NVMe flash memory as a backup buffer/cache to hold high-resolution assets and data, all while efficiently tightening how these assets are fed into RAM via technologies like Sampler Feedback Streaming.

With the high-speed SSD helping out, the overall DRAM footprint could shrink and reduce overall capacity costs. This plan allows Microsoft to spend less on DRAM (which is 33x more expensive as flash) without losing performance.

This is especially true for the Series S with its 10GB of GDDR6 memory.

The result is a smaller SSD that achieves high-speed 2.4GB/sec uncompressed data transfers, has full parity with Xbox Series X data flows, and is flexible thanks to the Velocity Architecture.

The Xbox Series S will release alongside the Series X on November 10, 2020 for $299 (the Series X is $499).

Check below for a side-by-side spec comparison:

Xbox Series S' lower-cost 512GB SSD reduces DRAM prices too 43 | TweakTown.com
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Derek is absorbed with the intersection of technology and gaming, and is always looking forward to new advancements. With over six years in games journalism under his belt, Derek aims to further engage the gaming sector while taking a peek under the tech that powers it. He hopes to one day explore the stars in No Man's Sky with the magic of VR.

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