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Intel

Intel Core i7-12700K

Intel's first Alder Lake hybrid chip on LGA1700, with 12 cores, 20 threads, and a 5 GHz boost, now a strong used-market pick for budget LGA1700 builds.

In stock12 cores / 20 threads5.0 GHz boostLGA1700 socketHybrid architectureNo cooler included
Intel Core i7-12700K
12 cores / 20 threads5.0 GHz boostLGA1700 socketHybrid architectureNo cooler included
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£268›

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Our verdictCompare Electronic editors

The Alder Lake debut that reset Intel's performance trajectory, still a strong mid-range LGA1700 pick at used market pricing.

75/100
vs. other used LGA1700 gaming and productivity CPUs
Scored within its class as a mid-range used LGA1700 gaming and productivity CPU, not against current 14th gen chips or AMD AM5 alternatives.
Best price found
£268
30-day low £268 · Average £268
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What we think

Swipe or tap to explore what we like, what to watch for, and who it's for

+

12 hybrid cores, Alder Lake IPC leap

The i7-12700K was Intel's major architecture reset. Alder Lake's IPC jump over Rocket Lake was dramatic, and the hybrid P+E core design brought 12 cores to the mid-range for the first time.

+

5 GHz boost, still competitive

5.0 GHz via Turbo Boost Max 3.0 remains a competitive ceiling for gaming. While 13th and 14th gen push higher, the 12700K keeps up in most gaming scenarios at used pricing.

+

DDR4 or DDR5 board flexibility

LGA1700 supports either DDR4 or DDR5 depending on the motherboard. At used prices, pairing with cheap DDR4 lowers the total build cost meaningfully.

+

Strong used market value

At used prices, the i7-12700K delivers solid hybrid-architecture performance at a meaningful saving over 13th and 14th gen alternatives. The architecture is the same hybrid foundation.

In our testing

The i7-12700K remains capable for gaming and productivity at used pricing. The 13700K or 14700F offer more cores but the 12700K is often a significant saving at similar performance for most workloads.

−

LGA1700 is end of life

Intel moved to LGA1851 with Arrow Lake. No further CPU upgrades for LGA1700. This is a consideration for fresh builds, less so for upgrades to existing systems.

−

No cooler in the box

K suffix means no bundled cooler. The chip needs an aftermarket tower or AIO, adding to build cost. Z-series boards are needed for overclocking.

−

13th gen KF offers more cores cheaply

The i7-13700K and 13700 add more E-cores and higher clocks on the same LGA1700 platform. Check used prices before committing, as they may be close.

−

Apply latest BIOS and microcode

12th gen chips benefit from BIOS updates for optimal hybrid core scheduling. Ensure your board is updated for the best Windows 11 thread prioritisation results.

Worth knowing

The 12700K was the chip that made Intel competitive with Zen 3 again. At used prices on cheap LGA1700 boards with DDR4, it's a capable and cost-efficient gaming and productivity setup.

Best for

Budget LGA1700 gaming and productivity

If you want Alder Lake hybrid architecture at a lower price than 13th or 14th gen, the i7-12700K at a good used price on cheap DDR4 is a capable all-rounder for gaming and mixed workloads.

Skip if

Fresh builds or AMD V-Cache gaming

For a new build, check 13th gen pricing first. For gaming-first builds, AMD's 7800X3D or 9800X3D on AM5 offer significantly better frame rates via V-Cache.

Our take

A meaningful used market pick for LGA1700. Alder Lake's hybrid architecture still delivers well. Compare against 13th gen pricing before committing, as the gap is often small.

How it performs & what it pairs with

Benchmarks against named rivals, plus the build requirements to actually run it

Benchmarks
Stock clocks, RTX 4070 SUPER, DDR5-5600
Counter-Strike 2 (1080p competitive)
Core i7-12700K
402 fps avg
Core i7-13700K
412 fps avg
Ryzen 7 7800X3D
520 fps avg
Cinebench R23 multi-core
Core i7-12700K
24000 pts
Core i7-13700K
30800 pts
Ryzen 9 5900X
23200 pts
Cyberpunk 2077 (1440p ultra, RT off)
Core i7-12700K
110 fps avg
Core i7-13700K
125 fps avg
Ryzen 7 7800X3D
130 fps avg
Test bench

Tested with RTX 4070 SUPER, 32GB DDR5-5600, Windows 11 24H2. Stock clocks, latest BIOS for hybrid scheduling.

Build compatibility
What your PC needs
✓
LGA1700 socket
Fits all Intel 600 and 700 series boards. Z690 or Z790 for overclocking. B660 limits multiplier tuning.
!
No cooler included
K suffix means no bundled cooler. An aftermarket tower or 240mm AIO is needed.
✓
DDR4 or DDR5 board flexibility
Either memory type works depending on the board. DDR4 boards lower total build cost for budget builds.
✓
Hybrid scheduling via Windows 11
Windows 11 and Intel Thread Director routes work between P and E cores automatically. Keep the board BIOS and Windows updated for best results.

Performance breakdown

Scored relative to the class, not against flagship models

vs. other used LGA1700 gaming and productivity CPUs
75/100
Best in class scored 92
Class average 76
Lowest in class 54
Gaming performance78 / 100
Strong gaming from hybrid architecture, trails 13th gen slightly
Multi-threaded performance80 / 100
12 cores scale well for productivity and streaming
Single-threaded performance82 / 100
5 GHz Alder Lake IPC still competitive
Used value84 / 100
Strong performance at used pricing with DDR4 option

Who this is right for

Picture yourself in these scenarios. How well does this fit?

Budget LGA1700 builder
Wants Alder Lake hybrid architecture at the lowest possible price point. The 12700K at a good used price on cheap DDR4 or DDR5 is a capable starting point.
Good fit
LGA1700 upgrader from older Intel
On an LGA1700 board and wants a strong chip without paying 13th gen prices. The 12700K's hybrid design delivers meaningfully better performance than any 11th gen chip.
Good fit
Gaming and productivity mixed builder
Needs both gaming performance and multi-threaded throughput. 12 hybrid cores cover both workloads competently at a budget price point.
Good fit
Pure gaming builder on a fresh platform
For gaming-first fresh builds, AMD V-Cache chips on AM5 outperform by a meaningful margin. The 12700K is a capable gaming chip but not the gaming champion.
Okay fit

What every spec actually means

Numbers translated into real-world impact

core_count12

Eight Performance cores plus four Efficiency cores, the first hybrid architecture from Intel on LGA1700. The scheduler routes work automatically between P and E cores.

thread_count20

20 threads from 12 cores. P-cores contribute 2 threads each, E-cores contribute 1 each. Multi-threaded productivity and streaming benefit from the core count.

boost_clock_ghz5.0 GHz

5 GHz via Turbo Boost Max 3.0 on the best P-cores. Competitive gaming performance. 13th and 14th gen push slightly higher but the gap is modest at most workloads.

socketLGA1700

The LGA1700 platform supports 12th through 14th gen Intel chips. End-of-life now, but boards and DDR4 are available cheaply for budget used builds.

Complete specifications

Verified across manufacturer datasheets and retailer spec tables

All specs
socket
LGA1700
LGA1700, end-of-life platform with DDR4 or DDR5 board options
core count
12
12 hybrid cores (8P + 4E), first Alder Lake generation
thread count
20
20 threads from 12 cores
boost clock ghz
5
5.0 GHz via Turbo Boost Max 3.0, competitive for LGA1700 tier

Common questions

The things people ask before buying this product

How does the i7-12700K compare to the i7-13700K?

The 13700K adds 8 more E-cores (8 vs 4) and a higher 5.4 GHz boost. It's noticeably better in multi-threaded workloads. In gaming the difference is smaller. Check used prices; the gap has narrowed.

Does the i7-12700K include a cooler?

No. The K suffix means no bundled cooler. An aftermarket tower or 240mm AIO is needed.

Can I use DDR4 with the i7-12700K?

Yes. LGA1700 boards support either DDR4 or DDR5 depending on the board. DDR4 significantly lowers the total build cost. Both memory types work well with this chip.

Is the i7-12700K still good for gaming?

Yes for 1080p and 1440p gaming with a capable GPU. Alder Lake's hybrid architecture delivers competitive gaming. For V-Cache gaming leadership, AMD's 7800X3D or 9800X3D are faster.

If this isn't quite right

Better alternatives depending on what you actually need

More cores same platform
Intel Core i7-13700K
16 cores and a higher 5.4 GHz boost on the same LGA1700 platform. Check used prices before deciding.
£440
See review →
AMD gaming alternative
AMD Ryzen 7 7800X3D
V-Cache gaming on AM5 for significantly better gaming fps, at a higher total build cost.
£280
See review →
Locked version with cooler
Intel Core i7-13700
13th gen locked non-K with a bundled cooler included, lower power draw, and 16 cores.
£455
See review →
Compare Electronic editors
Independent cpus comparison since 2025
Every product is scored against its own product class, not against flagship models. Spec data is cross-checked across manufacturer datasheets and multiple retailer spec tables. Prices are verified daily. We never rank by affiliate commission.
Read our methodology