i7-640M vs i9-14900HX

Primary details

Comparing Core i9-14900HX and Core i7-640M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	155	2260
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Raptor Lake-HX	Intel Core i7
Power efficiency	49.59	3.52
Architecture codename	Raptor Lake-HX Refresh (2024)	Arrandale (2010−2011)
Release date	8 January 2024 (less than a year ago)	13 September 2010 (14 years ago)
Launch price (MSRP)	no data	$346

Detailed specifications

Core i9-14900HX and Core i7-640M 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	24 (Tetracosa-Core)	2 (Dual-core)
Threads	32	4
Base clock speed	2.2 GHz	2.8 GHz
Boost clock speed	5.7 GHz	3.46 GHz
Bus type	no data	DMI 1.0
Bus rate	157 MHz	1 × 2.5 GT/s
Multiplier	no data	21
L1 cache	80 KB (per core)	128 KB
L2 cache	2 MB (per core)	512 KB
L3 cache	36 MB (shared)	4 MB (shared)
Chip lithography	Intel 7 nm	32 nm
Die size	257 mm2	81+114 mm2
Maximum core temperature	100 °C	105 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	382 Million
64 bit support	+	+
Windows 11 compatibility	no data	-
Unlocked multiplier	+	-

Compatibility

Information on Core i9-14900HX and Core i7-640M 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	1 (Uniprocessor)
Socket	FCBGA1964	BGA1288,PGA988
Power consumption (TDP)	55 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-14900HX and Core i7-640M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	+
FMA	+	+
AVX	+	-
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	no data	+
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
PAE	no data	36 Bit
Turbo Boost Max 3.0	+	no data
FDI	no data	+
Fast Memory Access	no data	+
Deep Learning Boost	+	-

Security technologies

Core i9-14900HX and Core i7-640M technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-14900HX and Core i7-640M are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-14900HX and Core i7-640M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR3
Maximum memory size	192 GB	8 GB
Max memory channels	2	2
Maximum memory bandwidth	89.6 GB/s	17.051 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® UHD Graphics for 14th Gen Intel® Processors	Intel® HD Graphics for Previous Generation Intel® Processors
Quick Sync Video	+	-
Clear Video	no data	+
Clear Video HD	no data	+
Graphics max frequency	1.65 GHz	766 MHz
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Core i9-14900HX and Core i7-640M integrated GPUs.

Number of displays supported

4

2

Graphics image quality

Maximum display resolutions supported by Core i9-14900HX and Core i7-640M integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	no data
Max resolution over eDP	5120 x 3200 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-14900HX and Core i7-640M integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-14900HX and Core i7-640M.

PCIe version	5.0 and 4.0	2.0
PCI Express lanes	16	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

---

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

---

Pros & cons summary

---

Performance score	29.91	1.35
Recency	8 January 2024	13 September 2010
Physical cores	24	2
Threads	32	4
Power consumption (TDP)	55 Watt	35 Watt

---

Should you still have questions on choice between Core i9-14900HX and Core i7-640M, 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.

---