Ryzen 9 7945HX vs Core i9-9900KF

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Aggregate performance score

Core i9-9900KF
2019
8 cores / 16 threads, 95 Watt
11.84
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
35.49
+200%

Ryzen 9 7945HX outperforms Core i9-9900KF by a whopping 200% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9900KF and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking61189
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation14.28no data
Market segmentDesktop processorLaptop
SeriesIntel Core i9no data
Architecture codenameCoffee Lake-R (2018−2019)Dragon Range-HX (Zen 4)
Release date8 January 2019 (5 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$488no data
Current price$386 (0.8x MSRP)no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9900KF and Ryzen 9 7945HX 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 cores8 (Octa-Core)16 (Hexadeca-Core)
Threads1632
Base clock speed3.6 GHz2.5 GHz
Boost clock speed5 GHz5.4 GHz
Bus support4 × 8 GT/sno data
L1 cache64K (per core)64K (per core)
L2 cache256K (per core)1 MB (per core)
L3 cache16 MB (shared)64 MB (shared)
Chip lithography14 nmCCD = 5 nm, I/O = 6 nm
Die sizeno data2x 71 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplierYesYes

Compatibility

Information on Core i9-9900KF and Ryzen 9 7945HX 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
SocketFCLGA1151FL1
Power consumption (TDP)95 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900KF and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2DDR5-5200 RAM, PCIe 5, 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++
FMAno data+
AVX++
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+no data
Idle States+no data
Thermal Monitoring+no data
SIPP-no data
StatusDiscontinuedno data

Security technologies

Core i9-9900KF and Ryzen 9 7945HX technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data
Secure Key+no data
MPX+no data
Identity Protection+no data
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900KF and Ryzen 9 7945HX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900KF and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth41.6 GB/sno data
ECC memory support-no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Core i9-9900KF and Ryzen 9 7945HX.

PCIe version3.05.0
PCI Express lanes1628

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.

i9-9900KF 11.84
Ryzen 9 7945HX 35.49
+200%

Ryzen 9 7945HX outperforms Core i9-9900KF by 200% based on our aggregate benchmark results.


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.

Benchmark coverage: 68%

i9-9900KF 18314
Ryzen 9 7945HX 54898
+200%

Ryzen 9 7945HX outperforms Core i9-9900KF by 200% in Passmark.

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.

Benchmark coverage: 42%

i9-9900KF 1692
Ryzen 9 7945HX 2735
+61.6%

Ryzen 9 7945HX outperforms Core i9-9900KF by 62% in GeekBench 5 Single-Core.

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.

Benchmark coverage: 42%

i9-9900KF 8061
Ryzen 9 7945HX 15829
+96.4%

Ryzen 9 7945HX outperforms Core i9-9900KF by 96% in GeekBench 5 Multi-Core.

Gaming performance

Pros & cons summary


Performance score 11.84 35.49
Recency 8 January 2019 4 January 2023
Physical cores 8 16
Threads 16 32
Power consumption (TDP) 95 Watt 55 Watt

The Ryzen 9 7945HX is our recommended choice as it beats the Core i9-9900KF in performance tests.

Note that Core i9-9900KF is a desktop processor while Ryzen 9 7945HX is a notebook one.


Should you still have questions on choice between Core i9-9900KF and Ryzen 9 7945HX, 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.


Intel Core i9-9900KF
Core i9-9900KF
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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Community ratings

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Questions & comments

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