Ryzen 5 7645HX vs i7-640UM

Place in the ranking	2654	380
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i7	no data
Power efficiency	3.92	35.58
Architecture codename	Arrandale (2010−2011)	Dragon Range (Zen4) (2023)
Release date	7 January 2010 (14 years ago)	4 January 2023 (1 year ago)
Launch price (MSRP)	$305	no data

Detailed specifications

Core i7-640UM and Ryzen 5 7645HX 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	2 (Dual-core)	6 (Hexa-Core)
Threads	4	12
Base clock speed	1.2 GHz	4 GHz
Boost clock speed	2.27 GHz	5 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	9	no data
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	1 MB (per core)
L3 cache	4 MB (shared)	32 MB (shared)
Chip lithography	32 nm	5 nm
Die size	81+114 mm²	71 mm²
Maximum core temperature	105 °C	100 °C
Number of transistors	382+177 Million	6570 Million
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-640UM and Ryzen 5 7645HX 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	BGA1288	FL1
Power consumption (TDP)	18 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-640UM and Ryzen 5 7645HX. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i7-640UM and Ryzen 5 7645HX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-640UM and Ryzen 5 7645HX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-640UM and Ryzen 5 7645HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800	DDR5-5200
Maximum memory size	8 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	12.799 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	AMD Radeon 610M
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	500 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i7-640UM and Ryzen 5 7645HX integrated GPUs.

Number of displays supported

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-640UM and Ryzen 5 7645HX.

PCIe version	2.0	5.0
PCI Express lanes	16	28

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.

i7-640UM 0.76

Ryzen 5 7645HX 17.24
+2168%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-640UM 1183

Ryzen 5 7645HX 26868
+2171%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i7-640UM 226

Ryzen 5 7645HX 2667
+1080%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i7-640UM 442

Ryzen 5 7645HX 11678
+2542%

Gaming performance

Pros & cons summary

Performance score	0.76	17.24
Recency	7 January 2010	4 January 2023
Physical cores	2	6
Threads	4	12
Chip lithography	32 nm	5 nm
Power consumption (TDP)	18 Watt	45 Watt

i7-640UM has 150% lower power consumption.

Ryzen 5 7645HX, on the other hand, has a 2168.4% higher aggregate performance score, an age advantage of 12 years, 200% more physical cores and 200% more threads, and a 540% more advanced lithography process.

The Ryzen 5 7645HX is our recommended choice as it beats the Core i7-640UM in performance tests.

Should you still have questions on choice between Core i7-640UM and Ryzen 5 7645HX, ask them in Comments section, and we shall answer.