Ryzen 5 PRO 8645HS vs i9-12900H

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Primary details

Comparing Core i9-12900H and Ryzen 5 PRO 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking360not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopServer
SeriesIntel Alder Lake-Pno data
Power efficiency36.84no data
Architecture codenameAlder Lake-H (2022)Hawk Point (2024)
Release date4 January 2022 (2 years ago)16 April 2024 (less than a year ago)

Detailed specifications

Core i9-12900H and Ryzen 5 PRO 8645HS 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 cores14 (Tetradeca-Core)6 (Hexa-Core)
Threads2012
Base clock speed2.5 GHz4.3 GHz
Boost clock speed5 GHz5 GHz
L1 cache80K (per core)64 KB (per core)
L2 cache1.25 MB (per core)1 MB (per core)
L3 cache24 MB (shared)16 MB (shared)
Chip lithographyIntel 7 nm4 nm
Die size217 mm2178 mm2
Maximum core temperature100 °Cno data
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on Core i9-12900H and Ryzen 5 PRO 8645HS 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 configuration11
SocketFCBGA1744FP7
Power consumption (TDP)45 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900H and Ryzen 5 PRO 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2no data
AES-NI++
FMA+-
AVX++
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
Hyper-Threading Technology+no data
TSX+-
Thermal Monitoring+-
Flex Memory Access+no data
SIPP+-
Turbo Boost Max 3.0+no data
Precision Boost 2no data+
Deep Learning Boost+-

Security technologies

Core i9-12900H and Ryzen 5 PRO 8645HS 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 Core i9-12900H and Ryzen 5 PRO 8645HS 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 i9-12900H and Ryzen 5 PRO 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4, DDR5DDR5
Maximum memory size64 GBno data
Max memory channels2no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® Iris® Xe Graphics eligibleAMD Radeon 760M
Quick Sync Video+-
Graphics max frequency1.45 GHzno data
Execution Units96no data

Graphics interfaces

Available interfaces and connections of Core i9-12900H and Ryzen 5 PRO 8645HS integrated GPUs.

Number of displays supported4no data

Graphics image quality

Maximum display resolutions supported by Core i9-12900H and Ryzen 5 PRO 8645HS integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.44096 x 2304 @ 60Hzno data
Max resolution over eDP4096 x 2304 @ 120Hzno data
Max resolution over DisplayPort7680 x 4320 @ 60Hzno data

Graphics API support

APIs supported by Core i9-12900H and Ryzen 5 PRO 8645HS integrated GPUs, sometimes API versions are included.

DirectX12.1no data
OpenGL4.6no data

Peripherals

Specifications and connection of peripherals supported by Core i9-12900H and Ryzen 5 PRO 8645HS.

PCIe version4.04.0
PCI Express lanes2020

Pros & cons summary


Recency 4 January 2022 16 April 2024
Physical cores 14 6
Threads 20 12

i9-12900H has 133.3% more physical cores and 66.7% more threads.

Ryzen 5 PRO 8645HS, on the other hand, has an age advantage of 2 years.

We couldn't decide between Core i9-12900H and Ryzen 5 PRO 8645HS. We've got no test results to judge.

Be aware that Core i9-12900H is a notebook processor while Ryzen 5 PRO 8645HS is a server/workstation one.


Should you still have questions on choice between Core i9-12900H and Ryzen 5 PRO 8645HS, ask them in Comments section, and we shall answer.

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Intel Core i9-12900H
Core i9-12900H
AMD Ryzen 5 PRO 8645HS
Ryzen 5 PRO 8645HS

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Community ratings

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