Core i7-9700K vs Core i9-12900HX

Intel

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Popular choices:

VS
Intel

Core i9-12900HX

16 Cores24 Thrd55 WWMax: 5 GHz2022

Popular choices:

Performance Spectrum - CPU

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i7-9700K

2018

Why buy it

  • Costs $221 less on MSRP ($385 MSRP vs $606 MSRP).

Trade-offs

  • Worse for gaming: lower average FPS than Core i9-12900HX across 4 shared CPU benchmark tests.
  • Lower PassMark (14,397 vs 33,018).
  • Smaller total L3 cache (12 MB vs 30 MB).
  • Lower PassMark per dollar, at 37.4 vs 54.5 PassMark/$ ($385 MSRP vs $606 MSRP).
  • 72.7% higher power demand at 95W vs 55W.

Core i9-12900HX

2022

Why buy it

  • Better for gaming: +41.5% higher average FPS across 4 shared CPU benchmark tests.
  • +150% larger total L3 cache (30 MB vs 12 MB).
  • Delivers 45.7% more PassMark for each dollar spent, at 54.5 vs 37.4 PassMark/$ ($606 MSRP vs $385 MSRP).
  • Draws 55W instead of 95W, a 40W reduction.
  • Newer platform on FCBGA1964 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

  • 57.4% HIGHER MSRP
    $606 MSRPvs$385 MSRP

Quick Answers

So, is Core i9-12900HX better than Core i7-9700K?
Yes. Core i9-12900HX is the better overall CPU here. You are getting a 41.5% average FPS lead across 4 shared CPU game tests in our data, 129.3% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.
Which one is better for gaming?
If gaming is the priority, Core i9-12900HX is the better pick here. According to our tests, it delivers 41.5% more average FPS across 4 shared CPU game tests.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Core i9-12900HX is the better fit. You are getting 129.3% better PassMark, backed by 16 cores and 24 threads. It also carries the larger cache pool with 150% larger total L3 cache (30 MB vs 12 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Core i9-12900HX is the smarter buy today. Core i9-12900HX is 57.4% more expensive on MSRP at $606 MSRP versus $385 MSRP, and it gives you a 41.5% average FPS lead across 4 shared CPU game tests in our data. It is also 45.7% better value on MSRP (54.5 vs 37.4 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.
Which one is more future-proof for 2026 and beyond?
Core i9-12900HX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2018), a healthier platform with FCBGA1964 and DDR5 instead of LGA1151, 150% larger total L3 cache (30 MB vs 12 MB), and more multi-core headroom with 16 cores / 24 threads instead of 8/8. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Path of Exile 2

Path of Exile 2

PresetCore i7-9700KCore i9-12900HX
1080p
low308 FPS269 FPS
medium278 FPS259 FPS
high231 FPS214 FPS
ultra182 FPS184 FPS
1440p
low270 FPS230 FPS
medium221 FPS198 FPS
high178 FPS159 FPS
ultra143 FPS140 FPS
4K
low170 FPS159 FPS
medium140 FPS136 FPS
high108 FPS106 FPS
ultra95 FPS93 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-9700KCore i9-12900HX
1080p
low360 FPS611 FPS
medium321 FPS523 FPS
high291 FPS439 FPS
ultra259 FPS397 FPS
1440p
low324 FPS527 FPS
medium282 FPS470 FPS
high258 FPS397 FPS
ultra225 FPS340 FPS
4K
low249 FPS310 FPS
medium221 FPS281 FPS
high208 FPS266 FPS
ultra179 FPS232 FPS
League of Legends

League of Legends

PresetCore i7-9700KCore i9-12900HX
1080p
low360 FPS775 FPS
medium360 FPS616 FPS
high360 FPS545 FPS
ultra360 FPS462 FPS
1440p
low360 FPS692 FPS
medium360 FPS554 FPS
high360 FPS485 FPS
ultra360 FPS416 FPS
4K
low360 FPS498 FPS
medium360 FPS416 FPS
high360 FPS373 FPS
ultra318 FPS314 FPS
Valorant

Valorant

PresetCore i7-9700KCore i9-12900HX
1080p
low360 FPS825 FPS
medium360 FPS783 FPS
high360 FPS676 FPS
ultra360 FPS600 FPS
1440p
low360 FPS744 FPS
medium360 FPS659 FPS
high360 FPS569 FPS
ultra360 FPS496 FPS
4K
low360 FPS523 FPS
medium360 FPS474 FPS
high360 FPS421 FPS
ultra360 FPS366 FPS

Technical Specifications

Side-by-side comparison of Core i7-9700K and Core i9-12900HX

Intel

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

Intel

Core i9-12900HX

The Core i9-12900HX is manufactured by Intel. It was released in 10 May 2022 (3 years ago). It is based on the Alder Lake-HX (2022) architecture. It features 16 cores and 24 threads. Base frequency is 2.3 GHz, with boost up to 5 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1964. Thermal design power (TDP): 55 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 33,018 points. Launch price was $499.

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i9-12900HX offers 16 cores / 24 threads — the Core i9-12900HX has 8 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 5 GHz on the Core i9-12900HX — a 2% clock advantage for the Core i9-12900HX (base: 3.6 GHz vs 2.3 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i9-12900HX uses Alder Lake-HX (2022) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i9-12900HX's 33,018 — a 78.5% lead for the Core i9-12900HX. L3 cache: 12 MB (total) on the Core i7-9700K vs 30 MB (total) on the Core i9-12900HX.

FeatureCore i7-9700KCore i9-12900HX
Cores / Threads
8 / 8
16 / 24+100%
Boost Clock
4.9 GHz
5 GHz+2%
Base Clock
3.6 GHz+57%
2.3 GHz
L3 Cache
12 MB (total)
30 MB (total)+150%
L2 Cache
256K (per core)
1.25 MB (per core)+400%
Process
14 nm
Intel 7 nm-50%
Architecture
Coffee Lake-R (2018−2019)
Alder Lake-HX (2022)
PassMark
14,397
33,018+129%
Cinebench R23 Multi
23,150
Geekbench 6 Single
2,426
Geekbench 6 Multi
14,620
🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i9-12900HX uses FCBGA1964 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9700K versus DDR5-4800, DDR4-3200 on the Core i9-12900HX — the Core i9-12900HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-9700K) vs 48 (Core i9-12900HX) — the Core i9-12900HX offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and HM670,WM690 (Core i9-12900HX).

FeatureCore i7-9700KCore i9-12900HX
Socket
LGA1151
FCBGA1964
PCIe Generation
PCIe 3.0
PCIe 5.0+67%
Max RAM Speed
DDR4-2666
DDR5-4800, DDR4-3200+25%
Max RAM Capacity
128 GB
128 GB
RAM Channels
2
2
ECC Support
No
No
PCIe Lanes
16
48+200%
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x, VT-d (Core i7-9700K) vs VT-x, VT-d, EPT (Core i9-12900HX). Both include integrated graphics UHD Graphics 630 (Core i7-9700K) and UHD Graphics 770 (Core i9-12900HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop, Core i9-12900HX targets High-end Mobile Performance. Direct competitor: Core i9-12900HX rivals Ryzen 9 6900HX.

FeatureCore i7-9700KCore i9-12900HX
Integrated GPU
Yes
Yes
IGPU Model
UHD Graphics 630
UHD Graphics 770
Unlocked
Yes
Yes
AVX-512
No
No
Virtualization
VT-x, VT-d
VT-x, VT-d, EPT
Target Use
Desktop
High-end Mobile Performance
💰

Value Analysis

The Core i7-9700K launched at $385 MSRP, while the Core i9-12900HX debuted at $606. On MSRP ($385 vs $606), the Core i7-9700K is $221 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 54.5 pts/$ for the Core i9-12900HX — making the Core i9-12900HX the 37.2% better value option.

FeatureCore i7-9700KCore i9-12900HX
MSRP
$385-36%
$606
Performance per Dollar
37.4
54.5+46%
Release Date
2018
2022