These 4 historical CPUs refuse to change into out of date, even in 2026
We have a tendency to spend so much of time chasing the newest and biggest in PC {hardware}. Each new era of CPUs guarantees a brand new structure, extra cores, and better clock speeds, which in the end lead to higher efficiency.
But a processor that is been out for a number of years does not mechanically change into out of date when newer {hardware} comes alongside. Depending on what you employ your PC for, a CPU that got here out a decade in the past may very well be all you want. Whether it is gaming, video enhancing, juggling heavy workloads, and even working a homelab, these 4 processors show that outdated {hardware} can nonetheless be nice.
The Ryzen 5 3600 refuses to retire from finances gaming PCs
Six Zen 2 cores nonetheless get it completed
It’s simple to overlook simply how outdated AMD’s Zen 2 structure is as a result of AM4 continues to be alive and effectively at this time, with the present reminiscence scarcity making its low cost DDR4 ecosystem much more interesting.
But the AMD Ryzen 3000 Series isn’t any spring hen. It was launched approach again in July 2019, which makes it a full 7 years outdated. It’s three full generations behind, which makes it historical, a minimum of by enthusiast standards.
However, regardless of its relative outdated age, this 6-core/12-thread Ryzen 5 3600 nonetheless holds up remarkably effectively for a chip its age. It helps DDR4 RAM, which is significantly cheaper than DDR5 proper now, and it has PCIe Gen 4.0, making it simpler to pair with the latest budget graphics cards with a restricted variety of PCIe lanes.
While you’ll be able to’t simply discover a new Ryzen 5 3600, the beauty of this particular mannequin is that it was vastly in style for years. It was an inexpensive and pretty highly effective CPU at launch, which made it a well-liked selection for everybody from mild desktop customers to video editors and avid gamers.
You can recurrently discover this chip for round $50 to $80 on the used market, and I’ve seen some eBay listings go as little as $50, which is an absolute steal for a chip that also feels comparatively fashionable. Recent bought eBay listings present the Ryzen 5 3600 going for $50 and round $80, relying on the itemizing and whether or not a cooler is included. It’s not a foul value in case you simply need a primary Windows 11 machine or an inexpensive gaming machine.
Its successor, the Ryzen 5 5600, continues to be an immensely popular chip people buy today. It’s sooner throughout most workloads, nevertheless it additionally prices significantly extra. If you are on a decent finances and simply need to construct a 1080p gaming machine or general-purpose desktop, it is arduous to beat the Ryzen 5 3600. Plus, shopping for into AM4 provides you a superb improve path down the road.
The Core i7-8700K nonetheless has sufficient muscle for critical work and multitasking
More than a mediocre gaming chip
Intel launched the Eighth-generation Coffee Lake chips as a direct response to AMD Ryzen’s first era in 2017, which introduced a better core rely and hyper-threading to the lots. Intel lastly bumped up the core rely throughout the board, drastically bettering multi-threaded efficiency within the course of.
Although the Intel Core i7-8700K is 9 years outdated now, it is nonetheless a formidable 6-core/12-thread beast.
Those 12 threads are an enormous step-up in comparison with Intel chips from only a yr or two earlier than. They’re particularly vital once you transfer away from gaming, as duties like video rendering, transcoding, compression, and varied different heavy workloads could make full use of the additional threads.
They additionally give the chip loads of respiration room when multitasking, working quite a few Chrome tabs, background apps, and different duties concurrently. It’s value stating that it meets Windows 11’s minimal necessities, so it is nonetheless a authentic decide for a Windows machine.
And in case you can dwell with its excessive idle energy draw and have already got the chip at hand, you might flip it into a fairly formidable server.
Aside from the core and thread rely, it has a reasonably respectable clock velocity as effectively. It boasts a 4.7GHz most enhance clock, and in case you bought good silicon, it may be overclocked to 5GHz with the fitting cooler and a voltage bump.
Despite being a bit older and working hotter, it may possibly truly outperform the Ryzen 5 3600 in some gaming benchmarks whereas barely falling behind in productiveness, which speaks volumes about its efficiency and longevity.
The Core i7-4790K can nonetheless play fashionable video games and do desktop work with the fitting compromises
Haswell is not going anyplace
The Intel Core i7-4790K is a legendary high-end chip from Intel’s enthusiast-oriented “Devil’s Canyon” Haswell lineup that got here out when Intel was the dominant model within the CPU market, all the way in which again in 2014.
Despite being a whopping 12 years outdated, this 4-core/8-thread chip with a 4.4GHz enhance clock and 88W TDP one way or the other nonetheless holds its floor in fashionable machines.
While it lacks some fashionable instruction units like AVX-512, it does assist AVX2 and SSE4.2, which helped it age higher than a few of AMD’s chips from the identical period. It’s no video enhancing monster, however you’ll be able to in all probability make do with it. It additionally helps Intel Quick Sync, which may drastically speed up appropriate video transcoding workloads.
Surprisingly, it may possibly nonetheless run some video games too, particularly in case you give it a light overclock (which the 4790K can simply deal with with the fitting cooling). Paired with the NVIDIA RTX 2060 Super, it may possibly run games like Kingdom Come Deliverance 2, Cyberpunk 2077, and Battlefield 6 at round 60–70 FPS, which places it firmly in “playable” territory.
That being mentioned, its quad-core design and historical DDR3 reminiscence are main limitations in additional demanding titles, the place stuttering can change into a problem. A current check of an overclocked 4790K and RTX 2060 Super hit round 60–70 FPS in these video games at 1080p, though the 1% lows had been usually significantly decrease.
Unfortunately, the i7-4790K does not formally assist Windows 11, and whilst you may sideload it, Linux makes rather more sense. It’ll free up resources, and when paired with an older AMD card with 16 PCIe lanes (to keep away from a possible bandwidth bottleneck), such because the RX 5700 XT, it may possibly make for a half-decent gaming rig.
Now, I’m not saying that you must exit and decide up a used i7-4790K when the Ryzen 5 3600 is a significantly better inexpensive decide, however in case you already personal this chip, you might doubtlessly squeeze one other few years out of it.
The Xeon E5-2670 provides homelabbers eight cores for the worth of a espresso
Cheap enterprise horsepower
Intel’s often-overlooked Xeon server chips have been the finances PC builder’s secret weapon for a few years. They are likely to have extra cores and threads than up to date client fashions, however comparatively low clock speeds that may damage gaming and common desktop efficiency.
This brings me to at this time’s star of the present, the Xeon E5-2670 (v1). It’s an 8-core/16-thread Sandy Bridge CPU from 2012 with a 115W TDP and an admittedly fairly low 3.3GHz most enhance clock.
You can readily discover this chip for round $5–$10 on Facebook Marketplace and eBay, which implies you are actually paying lower than a greenback per thread.
Despite being an outdated server chip, it may possibly truly run some modern games at a decent FPS with the fitting graphics card, although it’s a bottleneck for a lot of of them.
But I believe the most effective place to place this Xeon chip to work is a homelab. It will not wow you with its efficiency, however due to having so many cores and DDR3 RAM being so cheap, it may possibly deal with a bunch of self-hosted apps with out a downside.
That being mentioned, it is nonetheless a really outdated chip with comparatively excessive energy consumption that’ll price extra to run over a yr than to purchase, so it may not be the most effective answer for a server that runs 24/7.
Old does not at all times should imply out of date
Depending on what you employ your PC for, an outdated CPU can nonetheless make good sense. The Ryzen 5 3600 and i7-8700K are undoubtedly outdated chips, however they continue to be fashionable and highly effective sufficient which you can fairly justify utilizing them in a Windows 11 machine at this time, whereas the i7-4790K and Xeon E5-2670 are surprisingly succesful items of legacy {hardware} for a secondary gaming machine or server.
So, in case you’ve bought one in every of these chips mendacity round, perhaps now’s the time to offer it a brand new function.

