The right processor in 2026 is less about chasing the highest boost clock and more about three practical questions: are you buying for games, for creating, or for both; can you live with a new motherboard and a kit of expensive DDR5; and how long do you want the socket to last?
This is a buying guide, not a lab review. Forge PC has not bench-tested these chips ourselves. The recommendations below follow official specifications, independently published testing — particularly Club386's 20 October 2026 CPU guide and Tom's Hardware's 2026 CPU hierarchy (last updated 5 October 2026) — and the cheapest new UK street prices we could verify on 12 November 2026 via SpecPrice (updated 11:53 GMT). Treat every price as approximate and check the shop before you buy.
The short version
For a new gaming PC, buy an AMD Ryzen chip on AM5. The Ryzen 7 9850X3D is the current gaming leader, but the cheaper Ryzen 7 9800X3D is close enough that it is often the smarter spend. If you game and render, edit or compile, the Ryzen 9 9950X3D is the usual flagship. If you care more about multi-threaded work than peak frame rates, Intel's Core Ultra 7 270K Plus is the strong value chip, with the caveat that LGA 1851 looks like a short-lived socket. If you already have a good AM4 or DDR4 Intel board, stay there for now: a Ryzen 7 5800X3D or a Core i7-14700K can be a better use of money than a full platform swap while DDR5 is this expensive.
New AMD Ryzen 7000 and 9000 desktop chips, including the X3D models, use socket AM5 and DDR5 memory. AMD's official chipset list for current Ryzen 9000 chips is A620, B650, B650E, B840, B850, X670, X670E, X870 and X870E. At Computex 2026, on 31 May, AMD said it would support AM5 through 2029. In late August, AMD technical documentation spotted by InstLatX64 and reported by TechSpot and TechPowerUp listed the next desktop family, Zen 6 “Olympic Ridge”, for AM5. Whether a particular existing board gets a BIOS for those chips is still up to its maker. That is a genuine reason to pay the motherboard and memory tax once, rather than again in two years.
Intel now has two relevant desktop sockets. LGA 1700 covers 12th to 14th-generation Core chips and, uniquely, many boards can take either DDR4 or DDR5. LGA 1851 is the socket for Core Ultra 200S and the newer Core Ultra 200S Plus “Arrow Lake Refresh” chips (launched in March 2026), and it is DDR5 only. Club386 says the socket is expected to be retired when Intel's Nova Lake chips arrive on a new LGA 1954 socket, though Intel has not confirmed that, so an LGA 1851 board is not the long upgrade path AM5 is.
AM4 is closed as a future platform, but it is not dead as an upgrade path. If your board already runs a Ryzen 5000 chip and you have DDR4 in the machine, you can still drop in a faster AM4 processor without touching memory prices.
Official specs worth knowing
The Ryzen 7 9850X3D, launched on 29 January 2026, is an 8-core, 16-thread Zen 5 chip with a 4.7GHz base, a boost of up to 5.6GHz, 96MB of L3 cache and a 120W default TDP. It has no boxed cooler, officially supports DDR5, and AMD recommends a liquid cooler for optimal performance. The older Ryzen 7 9800X3D is the same 8-core, 96MB, 120W recipe with the same 4.7GHz base but a lower 5.2GHz boost, which is why the two chips sit so close in games.
The specifications Club386 lists for the other chips we lean on here: the Ryzen 9 9950X3D is a 16-core, 32-thread Zen 5 part with a 4.3GHz base, a 5.7GHz boost, 128MB of L3 and a 170W TDP. The Ryzen 5 9600X is a 6-core, 12-thread, 65W chip boosting to 5.4GHz with 32MB of L3. The Ryzen 5 7500X3D is a 6-core Zen 4 X3D chip at 65W, boosting to 4.5GHz, with the same 96MB L3 cache as the dearer X3D models. The Ryzen 7 5800X3D is an 8-core Zen 3 AM4 chip, 105W, boosting to 4.5GHz, also with 96MB of L3.
On the Intel side, the official Core Ultra 7 270K Plus has 24 cores (8 performance and 16 efficient), 24 threads, 36MB of cache and a boost of up to 5.50GHz, with a 125W processor base power and a 250W maximum turbo power, on LGA 1851. Club386 lists the Core Ultra 5 250K Plus as an 18-core (6P+12E), 18-thread Arrow Lake Refresh chip with a 5.3GHz P-core boost and a 159W maximum TDP. The last-gen Core i7-14700K is an LGA 1700 chip with 8 P-cores and 12 E-cores (20 cores, 28 threads) and a high 253W maximum TDP; it can run on DDR4 or DDR5 boards, but it runs hot and needs a current BIOS with Intel's stability fixes.
Approximate lowest new UK prices on 12 November 2026, from SpecPrice:
Processor | Socket | Approx. lowest UK price |
|---|
Ryzen 5 9600X | AM5 | £160 |
Core Ultra 5 250K Plus | LGA 1851 | £196 |
Ryzen 5 7500X3D | AM5 | £206 |
Ryzen 7 9700X | AM5 | £250 |
Ryzen 7 7800X3D | AM5 | £263 |
Core Ultra 7 270K Plus | LGA 1851 | £284 |
Ryzen 7 5800X3D | AM4 | £300 |
Core i7-14700K | LGA 1700 | £305 |
Ryzen 7 9800X3D | AM5 | £350 |
Ryzen 7 9850X3D | AM5 | £370 |
Ryzen 9 9950X3D | AM5 | £515 |
Core Ultra 9 285K | LGA 1851 | £525 |
Our picks
Best gaming CPU: Ryzen 7 9850X3D, from around £370 — or the 9800X3D at around £350. Club386 calls the 9850X3D the best gaming CPU, and Tom's Hardware's hierarchy also puts it at the top of its 1080p gaming ranking, with the 9800X3D (97 per cent of its score) and 9950X3D (about 96 per cent) close behind. The 9850X3D's advantage over the 9800X3D is a higher boost clock, not a different cache design, and Club386 is explicit that the older chip is often nearly as fast for less money. If the 9800X3D is meaningfully cheaper on the day you buy, take it and spend the difference on the graphics card. Prices can flip, though: on 9 November Club386 reported a US Amazon coupon that briefly made the 9850X3D the cheaper chip, so check both. Both need an AM5 board, DDR5, and a decent cooler — AMD does not include one in the box.
Best overall if you game and create: Ryzen 9 9950X3D, from around £515. This is Club386's best-CPU-overall pick: one eight-core chiplet with 3D V-cache for games, plus a second eight-core chiplet for heavy threaded work, at a 5.7GHz boost. It is the clean “one chip” answer if your week is a mix of games, compiling and rendering. The even dearer Ryzen 9 9950X3D2 Dual Edition exists, but Club386 calls it enormously expensive and the gains over a standard 9950X3D small.
Best budget AM5 chip: Ryzen 5 9600X, from around £160, or the 7500X3D at around £206 if games come first. The 9600X is a cool, 65W, six-core Zen 5 chip that Club386 uses as its budget pick, and it leaves budget for a better GPU. The 7500X3D is the cheap way onto 3D V-cache: same 96MB L3 as the flagship gaming chips, lower clocks and only six cores, which hurts it in productivity but keeps gaming closer to more expensive X3D parts than the price suggests. A non-X3D Ryzen 7 9700X at about £250 is the middle path if you want eight cores without paying the X3D premium.
Best Intel chip for heavy threaded work: Core Ultra 7 270K Plus, from around £284. Officially you get 24 cores and a 5.5GHz boost at a street price close to AMD's eight-core chips. Club386's content-creation pick is this one rather than the dearer Core Ultra 9 285K, thanks to Arrow Lake Refresh changes, including a faster die-to-die interconnect, that improved gaming performance. Two caveats from Club386: LGA 1851 is expected to be a short-lived socket, and in its tests the Arrow Lake platform capped PCIe 5.0 SSD reads at around 12,200MB/s. You will also need a capable cooler, because the maximum turbo power is 250W. The Core Ultra 5 250K Plus at about £196 is the cheaper 18-core alternative if you want Intel's mix of cores without spending Ryzen 7 money.
Best upgrade if you must stay on DDR4: Ryzen 7 5800X3D (AM4, around £300) or Core i7-14700K (LGA 1700, around £305). This is the 2026 memory market talking, not nostalgia. Club386 argues that when 32GB of DDR5 can cost around £500, a drop-in chip for a board and memory you already own is often the rational move. The 5800X3D remains the strongest AM4 gaming upgrade; the 14700K is the better multi-thread option on LGA 1700, provided the BIOS is up to date. Neither is as fast as a new X3D chip. Both avoid a forced DDR5 purchase.
What we would not do
We would not buy a new LGA 1700 motherboard in 2026 just to run a 14th-generation chip. The socket is a dead end, and a new board plus DDR5 is most of the cost of going to AM5. We would also not spend Core Ultra 9 money on a 285K when the 270K Plus is cheaper and, in Club386's testing, the better buy. And we would not pair a £370 gaming CPU with an 8GB graphics card: in this market the GPU and the RAM kit deserve budget before a tiny X3D upgrade does.
Our verdict
Choose the 9850X3D or 9800X3D for a new gaming PC. Choose the 9950X3D if you need 16 cores as well. Choose a 9600X or 7500X3D if the graphics card has to take most of the budget. Choose the 270K Plus if multi-threaded work comes first and you can accept Intel's shorter socket story. Choose a 5800X3D or 14700K if your current board and DDR4 are still good. In every case, price the memory and motherboard before you fall for the CPU on its own.
