Aaron Klotz is a contributing writer for Tom\u2019s Hardware, covering news related to computer hardware such as CPUs, and graphics cards. ","collapsible":{"enabled":true,"maxHeight":250,"readMoreText":"Read more","readLessText":"Read less"}}), "https://slice.vanilla.futurecdn.net/13-4-18/js/authorBio.js"); } else { console.error('%c FTE ','background: #9306F9; color: #ffffff','no lazy slice hydration function available'); } Aaron Klotz Social Links Navigation Contributing Writer Aaron Klotz is a contributing writer for Tom’s Hardware, covering news related to computer hardware such as CPUs, and graphics cards.
bit_user I'd love to read a deep dive on LPDDR6 by Anton! Seems like some interesting details are buried in there. I've noted LPDDR memories becoming a lot more relevant to mainstream & server computing as the years go by, and only expect this to continue. LPDDR5 went from hardly being on my radar to being a subject of intense interest, as Apple used it in their M-series SoCs, Nvidia is using it in Grace and Vera server CPUs, and AMD's Ryzen AI Max (Strix Halo) and Nvidia's GB10/N1X are using it in client machines. Reply
Notton DDR5: 2×32-bit= 64-bit DDR6: 4×24-bit= 96-bit So, if my math is right, dual channel (192-bit) LPDDR6 10700 = 256GBps? That would match quad channel LPDDR5 8000 Is a 192-bit LPDDR6 memory controller smaller than a 192-bit LPDDR5 controller? (Snapdragon X2 Elite has a 192-bit LPDDR5X mem controller running on 9523MT/s) How likely are we going to see LPDDR6 10700 or faster in phones, tablets, and laptops at launch? I see LPDDR6 has a slower standard at 9600, barely better than LPDDR5X, and I can only hope to never see that used in mainstream and high end products. Reply
usertests Notton said: How likely are we going to see LPDDR6 10700 or faster in phones, tablets, and laptops at launch? I think we'll see it in phones first. And the star of the show, especially for the initial wave of products, is the increased power efficiency, even if you get "slow" LPDDR6-9600. Reply
thestryker Notton said: How likely are we going to see LPDDR6 10700 or faster in phones, tablets, and laptops at launch? Samsung already has LPDDR5X-10700 so I'd guess it will be depending on AI demand. I'd expect phones/tablets would want LPDDR6 immediately no matter what speed since many use 64-bit interfaces now so even LPDDR6-9600 would be ~35% more bandwidth than LPDDR5X-10700. Notton said: Is a 192-bit LPDDR6 memory controller smaller than a 192-bit LPDDR5 controller? (Snapdragon X2 Elite has a 192-bit LPDDR5X mem controller running on 9523MT/s) I wouldn't really expect a whole lot to change here because the overall width is still the same. The packaging differences are likely to be the biggest thing to impact designs. We'll have to wait and see what the memory controllers for CPUs using LPDDR6 end up looking like though. Notton said: So, if my math is right, dual channel (192-bit) LPDDR6 10700 = 256GBps? That would match quad channel LPDDR5 8000 Pretty much, yes. Notton said: I see LPDDR6 has a slower standard at 9600, barely better than LPDDR5X, and I can only hope to never see that used in mainstream and high end products. The part that should be most concerning about LPDDR6 is the potential for getting 96-bit interfaces where we would have seen 128-bit in the past (LPDDR6-10700 @ 96-bit is roughly LPDDR5X-8000 @ 128-bit). Reply
bit_user Notton said: DDR5: 2×32-bit= 64-bit The LPDDR5 standard supports both 16-bit and 32-bit channels. Notton said: DDR6: 4×24-bit= 96-bit No, I think we don't know that. The DDR6 standard is yet to be published and you can't assume DDR5 will exactly copy what LPDDR6 did. Notton said: I see LPDDR6 has a slower standard at 9600, barely better than LPDDR5X, and I can only hope to never see that used in mainstream and high end products. The parties involved in these specs include the world experts in DRAM and how to scale performance, efficiently. Each new generation of DDR tends to start out at higher latencies than its predacessor, but can overcome that deficit with maturity. More importantly, each new standard version came about because the existing one ran out of gas, when it comes to bandwidth scaling, and especially if you don't want to sacrifice too much efficiency in the process. Reply
Key considerations
- Investor positioning can change fast
- Volatility remains possible near catalysts
- Macro rates and liquidity can dominate flows
Reference reading
- https://www.tomshardware.com/pc-components/dram/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/dram/sk-hynix-introduces-turbocharged-lpddr6-33-percent-faster-and-20-percent-more-power-efficient-than-lpddr5x-16gb-chips-deliver-10-7-gbps-uses-10nm-node#main
- https://www.tomshardware.com
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