Intel Core i5-14400F vs Intel Core i7-7800X

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Core i5-14400F compared with Core i7-7800X

	IntelCore i5-14400F	IntelCore i7-7800X
Overview
Released
Released	January 2024	June 2017
Cores and clocks
Cores
Cores	10 (6 performance, 4 efficiency) (better)	6
Threads
Threads	16 (better)	12
Base clock
Base clock	2.5 GHz	3.5 GHz
Boost clock
Boost clock	4.7 GHz (better)	4 GHz
L3 cache
L3 cache	20 MB (better)	8.25 MB
Cores
Cores	6 Performance-cores and 4 Efficient-cores, with Hyper-Threading; codename Raptor Lake	Skylake-X; 6 cores with Hyper-Threading. The unlocked multiplier is confirmed by Intel’s exact-model family product brief.
Clocks
Clocks	P-core base 2.5 GHz, max turbo 4.7 GHz; E-core base 1.8 GHz, max turbo 3.5 GHz	Turbo Boost 2.0 up to 4.00 GHz. Intel’s September press-kit record names 26 June 2017 availability for the first Core X processors; its August record confirms the four- to ten-core models were already on shelves. The exact model’s first-sale day was not established, so month precision is retained.
Cache
Cache	20 MB Intel Smart Cache (L3); 9.5 MB L2	8.25 MB Intel Smart Cache (L3).
Graphics and AI
Built-in graphics
Built-in graphics	No	No
Graphics
Graphics	None; a graphics card is required	No processor graphics, explicitly stated in Intel’s exact-model comparison-chart row; a separate graphics solution is required.
Platform
Socket
Socket	LGA1700	LGA2066
Base power
Base power	65 W	140 W
Maximum power
Maximum power	148 W	–
Unlocked
Unlocked	No	Yes
Cooler in the box
Cooler in the box	–	No
Memory support
Memory support	Up to DDR5 4800 MT/s or up to DDR4 3200 MT/s; 2 channels, up to 192 GB	Up to 128 GB; four channels of DDR4-2400; 77 GB/s maximum published bandwidth; no ECC. Current exact-model Intel specifications list DDR4-2400; the family comparison chart’s DDR4-2666 entry conflicts and is not used.
PCIe
PCIe	PCIe 5.0 and 4.0; 20 lanes (Up to 1x16+4, 2x8+4); DMI 4.0 x8	28 CPU lanes; PCIe 3.0.
Chipsets
Chipsets	–	Intel X299; LGA2066.
Process
Process	Intel 7	14 nm; Skylake-X.
Cooler
Cooler	max operating temperature 100 °C; thermal specification PCG 2020C	Intel explicitly excludes a fan and heatsink from the boxed product; a separate compatible cooler is required. Published junction limit: 100°C.