Ryzen 9 8945HS vs i9-12900K

Aggregate performance score

Core i9-12900K
2021
16 cores / 24 threads, 125 Watt
27.10
+40.8%

Core i9-12900K outperforms Ryzen 9 8945HS by a considerable 41% based on our aggregate benchmark results.

Primary details

Comparing Core i9-12900K and Ryzen 9 8945HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking184314
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation36.10no data
Market segmentDesktop processorLaptop
SeriesIntel Core i9no data
Power efficiency19.7739.01
Architecture codenameAlder Lake, Golden Cove, Gracemont (2021)Hawk Point-HS (Zen 4) (2023−2024)
Release date27 October 2021 (3 years ago)6 December 2023 (less than a year ago)
Launch price (MSRP)$589no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-12900K and Ryzen 9 8945HS 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 cores16 (Hexadeca-Core)8 (Octa-Core)
Threads2416
Base clock speed3.2 GHz4 GHz
Boost clock speed5.2 GHz5.2 GHz
Bus typeDMI 4.0no data
Bus rate8 × 16 GT/sno data
Multiplier32no data
L1 cache768 KB64 KB (per core)
L2 cache4 MB1 MB (per core)
L3 cache6 MB16 MB (shared)
Chip lithography10 nm4 nm
Die size215.25 mm2"178 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Core i9-12900K and Ryzen 9 8945HS 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
SocketFCLGA1700FP8
Power consumption (TDP)125 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900K and Ryzen 9 8945HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI++
FMA-+
AVX++
vPro+no data
Enhanced SpeedStep (EIST)+no data
Speed Shift+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
SIPP+-
Turbo Boost Max 3.0+no data
Precision Boost 2no data+
Deep Learning Boost+-

Security technologies

Core i9-12900K and Ryzen 9 8945HS 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 i9-12900K and Ryzen 9 8945HS 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 i9-12900K and Ryzen 9 8945HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4, DDR5DDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth76.805 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 770AMD Radeon 780M
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.55 GHzno data
Execution Units32no data

Graphics interfaces

Available interfaces and connections of Core i9-12900K and Ryzen 9 8945HS integrated GPUs.

Number of displays supported4no data

Graphics image quality

Maximum display resolutions supported by Core i9-12900K and Ryzen 9 8945HS integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.44096 x 2160 @ 60Hzno data
Max resolution over eDP5120 x 3200 @ 120Hzno data
Max resolution over DisplayPort7680 x 4320 @ 60Hzno data

Graphics API support

APIs supported by Core i9-12900K and Ryzen 9 8945HS integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i9-12900K and Ryzen 9 8945HS.

PCIe version5.0 and 4.04.0
PCI Express lanes2020

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.

i9-12900K 27.10
+40.8%
Ryzen 9 8945HS 19.25

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.

i9-12900K 41470
+40.7%
Ryzen 9 8945HS 29466

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.

i9-12900K 2651
+11.8%
Ryzen 9 8945HS 2372

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.

i9-12900K 15548
+34%
Ryzen 9 8945HS 11604

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i9-12900K 9859
+26.6%
Ryzen 9 8945HS 7786

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i9-12900K 71819
+45.7%
Ryzen 9 8945HS 49299

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i9-12900K 18753
+18%
Ryzen 9 8945HS 15894

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i9-12900K 3.66
+19.7%
Ryzen 9 8945HS 4.38

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i9-12900K 46
+46.8%
Ryzen 9 8945HS 31

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i9-12900K 4057
+52.6%
Ryzen 9 8945HS 2659

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i9-12900K 289
+2.8%
Ryzen 9 8945HS 281

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i9-12900K 3.5
+2.3%
Ryzen 9 8945HS 3.42

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i9-12900K 19.3
+25.4%
Ryzen 9 8945HS 15.4

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i9-12900K 201
+33.4%
Ryzen 9 8945HS 151

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i9-12900K 367
+23.1%
Ryzen 9 8945HS 298

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i9-12900K 11834
Ryzen 9 8945HS 14109
+19.2%

Geekbench 5.5 Multi-Core

i9-12900K 17776
+43.7%
Ryzen 9 8945HS 12368

Blender(-)

i9-12900K 125
Ryzen 9 8945HS 192
+54%

Geekbench 5.5 Single-Core

i9-12900K 2006
+2.1%
Ryzen 9 8945HS 1965

7-Zip Single

i9-12900K 6576
+5.2%
Ryzen 9 8945HS 6250

7-Zip

i9-12900K 97316
+35.7%
Ryzen 9 8945HS 71704

WebXPRT 3

i9-12900K 325
+2.8%
Ryzen 9 8945HS 316

Gaming performance

Pros & cons summary


Performance score 27.10 19.25
Integrated graphics card 6.15 18.27
Recency 27 October 2021 6 December 2023
Physical cores 16 8
Threads 24 16
Chip lithography 10 nm 4 nm
Power consumption (TDP) 125 Watt 45 Watt

i9-12900K has a 40.8% higher aggregate performance score, and 100% more physical cores and 50% more threads.

Ryzen 9 8945HS, on the other hand, has 197.1% faster integrated GPU, an age advantage of 2 years, a 150% more advanced lithography process, and 177.8% lower power consumption.

The Core i9-12900K is our recommended choice as it beats the Ryzen 9 8945HS in performance tests.

Note that Core i9-12900K is a desktop processor while Ryzen 9 8945HS is a notebook one.


Should you still have questions on choice between Core i9-12900K and Ryzen 9 8945HS, ask them in Comments section, and we shall answer.

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Intel Core i9-12900K
Core i9-12900K
AMD Ryzen 9 8945HS
Ryzen 9 8945HS

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Community ratings

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Questions & comments

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