AMD is Resurrecting 2018's Zen+ Architecture as 'New' CPUs in 2026 — Is This Normal?

In 2026, AMD quietly added three 'new' SKUs to its lineup — the Ryzen 7 4700LE (Zen 2), Ryzen 5 3501U (Zen+), and Ryzen 3 3100U (Zen+). The most eyebrow-raising detail: the Ryzen 3 3100U is a 2-core, 2-thread chip built on a 2018 architecture, being sold as a brand-new product eight years later. This isn't simple inventory clearance. It's a symptom of a CPU industry entering a mature phase where innovation is slowing, and old architectures are being recycled to fill budget-market gaps.

💡 What You Will Learn

In 2026, AMD quietly added three 'new' SKUs to its lineup — the Ryzen 7 4700LE (Zen 2), Ryzen 5 3501U (Zen+), and Ryzen 3 3100U (Zen+). The most eyebrow-raising detail: the Ryzen 3 3100U is a 2-core,

In 2026, AMD officially announced three 'new' processors.

Guess what architecture they use?

Zen+. Released in 2018.

One of them uses Zen 2 — from 2019.

This isn't a misread headline. TechPowerUp confirmed on June 15 that AMD added three new SKUs to its product line: Ryzen 7 4700LE, Ryzen 5 3501U, and Ryzen 3 3100U.

'This is just clearing out old inventory, right?' — that was my first reaction too.

1. How Old Are These 'New' CPUs?

Let's look at the numbers:

Ryzen 7 4700LE — Zen 2 (Renoir), 8 cores / 16 threads, 3.6GHz base / 4.2GHz boost, 65W TDP, AM4 socket. OEM only, no retail.

Ryzen 5 3501U — Zen+ (Picasso), 4 cores / 8 threads, 2.1GHz base / 3.7GHz boost, 15W TDP, Radeon Vega 8 graphics.

Ryzen 3 3100U — Also Zen+, 2 cores / 2 threads, 1.9GHz base / 3.2GHz boost, Vega 8 graphics.

All three support only DDR4-2400.

Timeline: Zen+ launched in 2018, Zen 2 in 2019. It's now 2026. The oldest of these chips is 8 years old. To put that in perspective: in 2018, the hottest iPhone was the XS Max, Bitcoin was hovering around $3,000, and ChatGPT didn't exist.

The most absurd one is the Ryzen 3 3100U. 2 cores, 2 threads. A 2C/2T laptop CPU being sold in 2026. I struggled to think of a use case. Open Chrome with 10 tabs plus WeChat and DingTalk, and this CPU would be gasping. One commenter put it bluntly: 'A 2C/2T chip in 2026 is more of a e-waste challenge than a budget laptop solution.' Harsh, but accurate.

1. Intel Isn't Any Better — Everyone's Recycling

Don't think only AMD is digging through the archives.

Intel confirmed Arrow Lake Refresh in March. What's a 'Refresh'? Take the Arrow Lake chips from 2024, add a bit more L3 cache, rename them Core Ultra 200S Plus, and ship them on March 26.

Intel was candid at its investor meeting: 'We have a gap to fill on the desktop side.'

Two SKUs: Core Ultra 5 250K Plus and Core Ultra 7 270K Plus. L3 cache bumped from 24MB to 30-36MB, gaming performance up 13-15%. Sounds decent, right? But it took two years to squeeze out this 'Refresh'.

On AMD's side — beyond the three 'resurrected antiques,' there's an even more interesting move. The 5800X3D, a legendary gaming CPU from 2022, is being re-released as an 'AM4 10th Anniversary Edition' on June 25 for $349. Tom's Hardware confirmed AMD did a full respin for this. An AMD executive said at the press conference, 'It took considerable engineering effort to get this old chip back into production.'

And this is happening while AMD has already committed to supporting AM5 through 2029 and announced Zen 6 with up to 24 cores.

The rosy interpretation: AMD is taking care of long-time users, giving them upgrade paths.

My interpretation is different.

1. Why Is This Happening? — Not Warmth, But Necessity

Two reasons.

First, DDR5 is too expensive. AMD's own computing product line head David McAfee admitted at CES 2026 that AMD was 'actively considering' re-releasing Zen 3 desktop chips because the combination of DDR5 memory and AM5 motherboards is too costly for users wanting a modest upgrade. Switching a CPU means swapping the motherboard and memory too — at least ¥1500-2000 ($200-280) extra. For users who just want to extend the life of an old machine, AM4 + DDR4 is the most practical choice. AMD saw this demand and chose to fill it — with old products.

Second, TSMC's advanced process nodes are too expensive. 3nm wafers cost more than double 7nm wafers. For budget laptops and OEM desktops in the sub-$300 range, using older 7nm/12nm processes is actually more economical. AMD isn't incapable of making new chips — it's unwilling to sell at a loss on low-end products using new processes.

So these three 'new' CPUs are all targeting low-end OEM markets and embedded devices. American consumers will likely never see them.

But a rational business decision doesn't change one fact: the CPU industry hasn't delivered anything genuinely exciting in a long time.

1. What Does This Mean for Ordinary Users?

Short term, it's actually good news:

• Want a cheap laptop? The 3501U and 3100U will bring more machines in the ¥2000-3000 range
• Holding onto an AM4 platform? The 5800X3D re-release gives you an upgrade option
• On a tight DIY budget? DDR4 boards + older architecture CPUs are currently the best value

Long term, it's concerning.

CPU architecture iteration is visibly slowing down. AMD's Zen 4 to Zen 5 IPC improvement was under 15%. Intel's move from Raptor Lake to Arrow Lake actually regressed in some metrics. Both companies are coasting on past work — Intel by adding cache, AMD by recycling old CPUs.

We used to say 'Moore's Law is dead' referring to transistor density. Now it seems product innovation itself is slowing down. The most compelling 'new' CPU to buy in 2026 is a 2022 chip re-released? That picture doesn't feel right.

1. Personal Take: Progress Has Slowed, But It's Not All Bad

I don't think this is simply 'clearing inventory.' It's more like the CPU industry entering a 'maturity phase.'

The smartphone industry entered this phase around 2015 — annual upgrades are marginal, but the ecosystem is stable, choices are abundant, and pricing is segmented. PC processors, after 50 years, have finally reached this point.

But AMD's move here still leaves a bad taste. Labeling a 2C/2T CPU from 2018 as a 2026 'new product' — what's the fundamental difference from Intel selling dual-core Celerons into 2020? The low-end market doesn't lack chips; it lacks honest solutions. Even a Zen 3 low-end variant would be far more respectable than dragging out Zen+.

One more thing: all three CPUs are marked 'Windows 11 compatible.' But users have discovered that Microsoft's official compatibility list for the 25H2 update has already excluded Zen+-based Ryzen 3000 series due to missing MBEC hardware support. That means if you buy a new laptop with a 3501U today, future Windows 11 major updates may not be available. The contradiction between AMD's compatibility claims and Microsoft's exclusion list is worth watching.

1. What Do You Think?

AMD is repackaging 7-year-old architectures as new products. Intel is calling a cache bump a 'next generation.' Is the industry maturing, offering more choices — or is genuine innovation just too hard, and everyone is tired?

Would you spend ¥1000 on a 2026 laptop with Zen+, or would you pay more for a proper Zen 4 / Zen 5 machine?

Sound off in the comments.