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.

Core i7-9700K vs Core i7-12800HX FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i7-9700K vs Core i7-12800HX: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i7-9700K

2018

Why buy it

✅Better for gaming: +3.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (14,397 vs 31,229).
❌Smaller total L3 cache (12 MB vs 25 MB).
❌Launch MSRP is still $385 MSRP, while Core i7-12800HX mostly shows up through inconsistent older-market listings.
❌72.7% higher power demand at 95W vs 55W.
❌Older platform position on LGA1151 with DDR4, while Core i7-12800HX moves to FCBGA1964 and DDR5.

Core i7-12800HX

2022

Why buy it

✅+116.9% higher PassMark.
✅+108.3% larger total L3 cache (25 MB vs 12 MB).
✅Draws 55W instead of 95W, a 40W reduction.
✅Newer platform on FCBGA1964 with DDR5 support instead of LGA1151 and DDR4.
✅25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-9700K across 50 shared CPU benchmark tests.

Quick Answers

So, is Core i7-12800HX better than Core i7-9700K?

It depends on what you want from the system. For gaming, Core i7-9700K is ahead with a 3.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-12800HX pulls ahead with 116.9% better PassMark. Core i7-12800HX also has the bigger cache pool with 108.3% larger total L3 cache (25 MB vs 12 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i7-12800HX is the stronger fit. You are getting 116.9% better PassMark, backed by 16 cores and 24 threads. It also has the larger cache pool with 108.3% larger total L3 cache (25 MB vs 12 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Core i7-12800HX is still the much better call for a fresh build. Core i7-12800HX comes in at an unclear MSRP at unclear MSRP versus $385 MSRP, and it still gives you 116.9% better PassMark. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (37.4 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1151.

Which one is more future-proof for 2026 and beyond?

Core i7-12800HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2018), a healthier platform with FCBGA1964 and DDR5 instead of LGA1151, 108.3% larger total L3 cache (25 MB vs 12 MB), and more multi-core headroom with 16 cores / 24 threads instead of 8/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-9700K vs Core i7-12800HX Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

Core i7-12800HX

The Core i7-12800HX 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 GHz, with boost up to 4.8 GHz. L3 cache: 25 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: 31,229 points. Launch price was $499.

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Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i7-12800HX offers 16 cores / 24 threads — the Core i7-12800HX has 8 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.8 GHz on the Core i7-12800HX — a 2.1% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 2 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i7-12800HX uses Alder Lake-HX (2022) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i7-12800HX's 31,229 — a 73.8% lead for the Core i7-12800HX. L3 cache: 12 MB (total) on the Core i7-9700K vs 25 MB (total) on the Core i7-12800HX.

Feature	Core i7-9700K	Core i7-12800HX
Cores / Threads	8 / 8	16 / 24+100%
Boost Clock	4.9 GHz+2%	4.8 GHz
Base Clock	3.6 GHz+80%	2 GHz
L3 Cache	12 MB (total)	25 MB (total)+108%
L2 Cache	256K (per core)+20380%	1.25 MB (per core)
Process	14 nm	Intel 7 nm-50%
Architecture	Coffee Lake-R (2018−2019)	Alder Lake-HX (2022)
PassMark	14,397	31,229+117%
Cinebench R23 Multi	—	18,680
Geekbench 6 Single	—	1,962
Geekbench 6 Multi	—	15,000

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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i7-12800HX 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 on the Core i7-12800HX — the Core i7-12800HX supports 80% 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 20 (Core i7-12800HX) — the Core i7-12800HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and HM670,WM690 (Core i7-12800HX).

Feature	Core i7-9700K	Core i7-12800HX
Socket	LGA1151	FCBGA1964
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	DDR5-4800+80%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	20+25%

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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 i7-12800HX). Both include integrated graphics — UHD Graphics 630 (Core i7-9700K) and Intel UHD Graphics 770 (Core i7-12800HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop, Core i7-12800HX targets Extreme Gaming Laptop. Direct competitor: Core i7-12800HX rivals Ryzen 7 6800HX.

Feature	Core i7-9700K	Core i7-12800HX
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics 630	Intel UHD Graphics 770
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d, EPT
Target Use	Desktop	Extreme Gaming Laptop