i5-12450HX vs Ryzen 9 3900

Primary details

Comparing Ryzen 9 3900 and Core i5-12450HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	299	672
Place by popularity	not in top-100	98
Cost-effectiveness evaluation	20.73	no data
Market segment	Desktop processor	Laptop
Series	AMD Matisse (Ryzen 3000 Desktop)	no data
Power efficiency	28.14	20.05
Architecture codename	Matisse (Zen 2) (2019−2020)	Alder Lake-HX (2022)
Release date	24 September 2019 (5 years ago)	10 May 2022 (2 years ago)
Launch price (MSRP)	$499	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 3900 and Core i5-12450HX 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	12 (Dodeca-Core)	8 (Octa-Core)
Threads	24	12
Base clock speed	3.1 GHz	2.4 GHz
Boost clock speed	4.3 GHz	4.4 GHz
L1 cache	64 KB (per core)	80K (per core)
L2 cache	512 KB (per core)	1.25 MB (per core)
L3 cache	64 MB	12 MB (shared)
Chip lithography	7 nm, 12 nm	Intel 7 nm
Die size	2x 74 mm2	215 mm2
Maximum core temperature	no data	100 °C
Number of transistors	7,600 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	+

Compatibility

Information on Ryzen 9 3900 and Core i5-12450HX 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
Socket	AM4	FCBGA1964
Power consumption (TDP)	65 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900 and Core i5-12450HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
Speed Shift	no data	+
Hyper-Threading Technology	no data	+
TSX	-	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
Turbo Boost Max 3.0	no data	+
Precision Boost 2	+	no data
Deep Learning Boost	-	+

Security technologies

Ryzen 9 3900 and Core i5-12450HX technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900 and Core i5-12450HX 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 Ryzen 9 3900 and Core i5-12450HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR4, DDR5
Maximum memory size	128 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	51.196 GB/s	76.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel UHD Graphics for 12th Gen Intel Processors
Quick Sync Video	-	+
Graphics max frequency	no data	1.3 GHz
Execution Units	no data	16

Graphics interfaces

Available interfaces and connections of Ryzen 9 3900 and Core i5-12450HX integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Ryzen 9 3900 and Core i5-12450HX integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2304 @ 60Hz
Max resolution over eDP	no data	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Ryzen 9 3900 and Core i5-12450HX integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900 and Core i5-12450HX.

PCIe version	4.0	5.0 and 4.0
PCI Express lanes	24	20

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	19.34	11.66
Recency	24 September 2019	10 May 2022
Physical cores	12	8
Threads	24	12
Power consumption (TDP)	65 Watt	55 Watt

---

Should you still have questions on choice between Ryzen 9 3900 and Core i5-12450HX, 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.

---