Best Overall Value
Start with the single fact that decides most budget builds: this chip comes with a cooler in the box. The Intel Laminar RM1 handles stock operation without a separate purchase, which is money you keep against the Core Ultra 5 245KF further down, which ships with nothing. For anyone counting every pound of a build, that bundled cooler is real value before you've even talked performance.
The layout is ten cores split six P-cores and four E-cores, running sixteen threads, with a 4.7 GHz boost. Our review scores it 8.5 out of 10 and lists it handling 1080p and 1440p gaming without bottlenecks when paired with a mid-range GPU. That ten-core hybrid setup gives it genuine multi-threaded legs over the six-core i5-11400 lower down this page, so if you edit the odd video or run background tasks while you game, it stretches further.
Memory is where this chip earns its keep on a budget. It supports both DDR4 and DDR5, so you can carry over an existing DDR4 kit or buy whichever is cheaper the week you build. The i5-11400 also does PCIe 4.0, but the 14400F adds PCIe 5.0 headroom for future GPUs and storage, and it works across Intel 600 and 700 Series boards, giving you cheap and premium motherboard options alike. Base power sits at 65W, which our review notes keeps thermals manageable and makes the chip a fit for compact ITX cases.
The honest catches are two. First, the F suffix means no integrated graphics, so a discrete GPU is mandatory and there's no display fallback if your card dies. The i5-11400, by contrast, keeps UHD 730 for exactly that troubleshooting moment. Second, the multiplier is locked, so 4.7 GHz single-core is the ceiling. If overclocking is your thing, the unlocked i7-6700K or Core Ultra 5 245KF are the picks instead. Our review also flags that the bundled cooler grows audible under sustained all-core load and benefits from a budget tower upgrade for quieter running. Owners rate it 4.7 stars across 581 ratings. For a fresh mid-range gaming build under this budget, it's the one we'd hand most people. See our full Intel Core i5-14400F review for the deeper breakdown.
Pros
- Laminar RM1 cooler included, no separate cooling spend to reach stock operation
- Runs on both DDR4 and DDR5, so old memory can carry over
- Fits Intel 600 and 700 Series boards, from budget to premium
- PCIe 5.0 support leaves room for a future GPU or drive
Cons
- No integrated graphics, so no display without a working GPU
- Locked multiplier rules out CPU overclocking
- LGA1700 is end-of-life, no in-socket chip beyond 14th gen
Buy on Amazon£147.97Read full review
Best for New Platforms
This is the only chip here on Intel's current LGA1851 socket, and that alone changes the maths. Where the i5-14400F sits at the top of a dead-end LGA1700 platform, the 245KF drops you onto Intel 800 Series boards with PCIe 5.0 and DDR5. Our review scores it 8 out of 10 and calls out respectable 1080p gaming, helped by a 5.2 GHz boost that's the highest clock on this page.
The core count reads high: fourteen cores, six P-cores plus eight E-cores. But look at the thread count, because it's fourteen, not the higher figure you'd expect. Our review points to the removal of Hyper-Threading on the P-cores, which limits heavily-threaded work and produces weak multi-core productivity scores. So while the ten-core i5-14400F actually runs more threads at sixteen, the 245KF trades that for a higher clock and unlocked overclocking on Z890 boards. For a gamer with a discrete GPU who skips heavy rendering, that's a fair swap. For anyone doing sustained all-core work, the 14400F is the safer buy.
Two costs bite. There's no stock cooler in the box, so unlike the i5-14400F you're buying cooling on top. And base power is 125W, which our review notes runs warmer than competing chips, meaning your cooler budget climbs again. Like the 14400F it's a KF part, so no integrated graphics and a discrete GPU is mandatory. Owners give it 4.4 stars from 147 ratings, the newest chip here by review volume. Buy it if platform freshness and a high gaming clock matter more than raw threaded throughput. Full detail is in our Intel Core Ultra 5 245KF review.
Pros
- Sits on the current LGA1851 socket, not a dead-end platform
- Unlocked multiplier for overclocking on Z890 boards
- 5.2 GHz boost, the highest clock in this group
Cons
- No stock cooler, adding to total build cost
- Fourteen threads only, Hyper-Threading dropped from P-cores
- 125W base power runs warm and demands more cooling
- No integrated graphics, discrete GPU required
Buy on Amazon£139.99Read full review
Best for LGA1200 Upgrades
If you've already got an LGA1200 board sat in a case, this is the chip that talks to it. Six cores, twelve threads, a 4.4 GHz boost and PCIe 4.0 straight off the CPU, which our review calls a genuine step up over the 10th-gen Comet Lake it replaces. It scores 7.5 out of 10.
The standout against the two F/KF chips above is the integrated UHD 730 graphics. That gives you a display output for troubleshooting or a GPU-free interim, something neither the i5-14400F nor the Core Ultra 5 245KF can do. Where it loses ground is longevity and threads: six cores against the 14400F's ten, and a locked multiplier. Our review is blunt that LGA1200 is a dead-end socket with no path beyond 11th gen, and that it runs hotter and draws more than a rival Ryzen 5 5600. Owners still back it heavily at 4.7 stars from 1,349 ratings. Buy it to breathe life into an existing 400 or 500 Series board, not for a fresh build where the 14400F costs little more and gives you far more room. Our Intel Core i5-11400 review has the full picture.
Pros
- Integrated UHD 730 gives a display without a discrete GPU
- PCIe 4.0 from the CPU, a real gain over 10th gen
- Twelve threads from six cores for the budget bracket
Cons
- LGA1200 is a dead-end socket, no upgrade beyond 11th gen
- Locked multiplier, no traditional overclocking
- Stock cooler is marginal under sustained loads
Buy on Amazon£186.17Read full review
Best Budget
Don't buy this for a fresh build. It's a 2015 chip and the four physical cores show their age against modern game engines. Buy it to revive an LGA1151 board you already have, which is exactly where it still makes sense. Our review scores it 7.5 out of 10 and points to strong single-threaded performance at 4.0 to 4.2 GHz that keeps it viable for lightly-threaded and gaming workloads.
The unlocked multiplier is the fun part, and it's something the i5-14400F and i5-11400 can't offer. Our review notes genuine overclocking headroom, with most chips reaching 4.5 to 4.7 GHz on adequate cooling. It has integrated HD 530 graphics too, though that's a fallback for output rather than gaming. Against the six-core i5-11400, this trades two cores and a newer platform for the lowest entry cost here and the ability to tune. No stock cooler is included, so factor that in. Owners have kept it at 4.7 stars across 2,548 ratings, the largest review count on this page. See our Intel Core i7-6700K review for the caveats in full.
Pros
- Unlocked multiplier with headroom to 4.5 to 4.7 GHz on cooling
- DDR4 XMP support up to DDR4-3200
- Largest owner review count here at 2,548 ratings
Cons
- Only four cores, weak in modern parallel workloads
- No stock cooler included
- LGA1151 is terminal, no chipset path beyond Kaby Lake
Buy on Amazon£100.00Read full review
