i5-1235U (IPU) vs i5-9400F

Primary details

Comparing Core i5-9400F and Core i5-1235U (IPU) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1108	not rated
Place by popularity	24	not in top-100
Cost-effectiveness evaluation	9.41	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i5	no data
Power efficiency	8.68	no data
Architecture codename	Coffee Lake-R (2018−2019)	Alder Lake-U (2022)
Release date	8 January 2019 (5 years ago)	23 February 2022 (2 years ago)
Launch price (MSRP)	$182	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-9400F and Core i5-1235U (IPU) basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	6 (Hexa-Core)	10 (Deca-Core)
Threads	6	12
Base clock speed	2.9 GHz	1.3 GHz
Boost clock speed	4.1 GHz	4.4 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	29	no data
L1 cache	64K (per core)	80K (per core)
L2 cache	256K (per core)	1.25 MB (per core)
L3 cache	9 MB (shared)	12 MB (shared)
Chip lithography	14 nm	10 nm
Die size	149 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i5-9400F and Core i5-1235U (IPU) compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1
Socket	FCLGA1151	Intel BGA 1744
Power consumption (TDP)	65 Watt	15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-9400F and Core i5-1235U (IPU). You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	-	no data
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-

Security technologies

Core i5-9400F and Core i5-1235U (IPU) technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data
Secure Key	+	no data
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-9400F and Core i5-1235U (IPU) are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-9400F and Core i5-1235U (IPU). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4, DDR5 Dual-channel
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	42.671 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Iris Xe 80EU

Peripherals

Specifications and connection of peripherals supported by Core i5-9400F and Core i5-1235U (IPU).

PCIe version	3.0	4.0
PCI Express lanes	16	20

Pros & cons summary

---

Recency	8 January 2019	23 February 2022
Physical cores	6	10
Threads	6	12
Chip lithography	14 nm	10 nm
Power consumption (TDP)	65 Watt	15 Watt

---

Should you still have questions on choice between Core i5-9400F and Core i5-1235U (IPU), ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---