DDR4 was supposed to be dead by now. It launched in 2014. DDR5 replaced it in 2020. But shortages have forced DRAM makers to keep producing DDR4. Now it's back in everything. PCs, servers, mini PCs, laptops. Even Meta is using old DDR4 memory because DDR5 is too expensive and too hard to find.
This is what happens when memory makers decide to focus entirely on AI datacenters. Everything else suffers.
The Return Of Older Memory
Companies that should be shipping DDR5 products are shipping DDR4 instead. Colorful released a new motherboard with DDR4 support. Minisforum launched a mini PC with DDR4. Both CPUs in those devices support DDR5, but the companies chose DDR4 because DDR5 would make the products too expensive and too hard to deliver on time.
DDR4 prices have jumped significantly. Not as much as DDR5, but still painful for memory that's a decade old. But it's still cheaper than DDR5, so manufacturers are using it anyway.
Even Big Companies Are Doing It
Meta, which runs some of the world's largest datacenters, started using DDR4 with AMD's latest EPYC Turin servers. These CPUs are supposed to use DDR5 only. Meta built a custom adapter to make DDR4 work with them because DDR5 wasn't available in the quantities they needed.
Modern enterprise datacenters are being retrofitted with legacy DDR4 due to severe supply limits on DDR5 hardware.
AMD and Intel are both betting on DDR4 now. AMD keeps relaunching old Ryzen CPUs for the AM4 platform, which only supports DDR4. Intel is restarting production of 10th, 12th, 13th, and 14th generation CPUs specifically because they use DDR4 and memory costs are crushing everything else.
What About DDR3
Some people are even going back to DDR3. It's slower and older, but it's cheaper than DDR4, which is cheaper than DDR5. If you can find a system that supports it, DDR3 is an option when every other option is financially insane.
This Isn't Temporary
Memory shortages are expected to last until 2028 at minimum. Prices are going up 30 to 40 percent in the next few quarters. DDR5 will keep getting more expensive. So DDR4 becomes the only practical option for most people who aren't building high-end systems.
Market Analysis Summary
DDR4 was supposed to be phased out. Instead, it's become the de facto standard again. Welcome to 2026, where we're still using memory from a decade ago because the industry decided making AI training faster was more important than letting regular people buy computer hardware.
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