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

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12800HE across 5 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 26,096).
❌Smaller total L3 cache (12 MB vs 24 MB).
❌Launch MSRP is still $385 MSRP, while Core i7-12800HE mostly shows up through inconsistent older-market listings.
❌111.1% higher power demand at 95W vs 45W.

Core i7-12800HE

2022

Why buy it

✅Better for gaming: +31.0% higher average FPS across 5 shared CPU benchmark tests.
✅+100% larger total L3 cache (24 MB vs 12 MB).
✅Draws 45W instead of 95W, a 50W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1151 and DDR4.
✅75% more PCIe lanes (28 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Core i7-9700K

2018

Core i7-12800HE

2022

Why buy it

✅Better for gaming: +31.0% higher average FPS across 5 shared CPU benchmark tests.
✅+100% larger total L3 cache (24 MB vs 12 MB).
✅Draws 45W instead of 95W, a 50W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1151 and DDR4.
✅75% more PCIe lanes (28 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12800HE across 5 shared CPU benchmark tests.
❌Lower PassMark (14,397 vs 26,096).
❌Smaller total L3 cache (12 MB vs 24 MB).
❌Launch MSRP is still $385 MSRP, while Core i7-12800HE mostly shows up through inconsistent older-market listings.
❌111.1% higher power demand at 95W vs 45W.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

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

Yes. Core i7-12800HE is the better overall CPU here. You are getting a 31.0% average FPS lead across 5 shared CPU game tests in our data, 81.3% 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 i7-12800HE is the better pick here. According to our tests, it delivers 31.0% more average FPS across 5 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i7-12800HE is the better fit. You are getting 81.3% better PassMark, backed by 14 cores and 20 threads. It also carries the larger cache pool with 100% larger total L3 cache (24 MB vs 12 MB).

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

Core i7-12800HE is the smarter buy by a wide margin for a fresh build. Core i7-12800HE is at an unclear MSRP at unclear MSRP versus $385 MSRP, and it gives you a 31.0% average FPS lead across 5 shared CPU game tests in our data. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that is mostly used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (37.4 vs 0.0 PassMark/$), it really only makes sense as a very cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Core i7-12800HE is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2018), a healthier platform with FCBGA1744 and DDR5 instead of LGA1151, 100% larger total L3 cache (24 MB vs 12 MB), and more multi-core headroom with 14 cores / 20 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.

Core i7-9700K Benchmark Check

Core i7-12800HE Benchmark Check

Path of Exile 2

Preset	Core i7-9700K	Core i7-12800HE
1080p
low	308 FPS	170 FPS
medium	278 FPS	154 FPS
high	231 FPS	129 FPS
ultra	182 FPS	107 FPS
1440p
low	270 FPS	141 FPS
medium	221 FPS	121 FPS
high	178 FPS	99 FPS
ultra	143 FPS	83 FPS
4K
low	170 FPS	77 FPS
medium	140 FPS	71 FPS
high	108 FPS	57 FPS
ultra	95 FPS	45 FPS

Open Core i7-9700K Open Core i7-12800HE

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-9700K	Core i7-12800HE
1080p
low	360 FPS	591 FPS
medium	321 FPS	505 FPS
high	291 FPS	426 FPS
ultra	259 FPS	386 FPS
1440p
low	324 FPS	506 FPS
medium	282 FPS	445 FPS
high	258 FPS	387 FPS
ultra	225 FPS	334 FPS
4K
low	249 FPS	312 FPS
medium	221 FPS	277 FPS
high	208 FPS	261 FPS
ultra	179 FPS	228 FPS

Open Core i7-9700K Open Core i7-12800HE

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-9700K	Core i7-12800HE
1080p
low	360 FPS	652 FPS
medium	360 FPS	582 FPS
high	360 FPS	533 FPS
ultra	360 FPS	458 FPS
1440p
low	360 FPS	615 FPS
medium	360 FPS	511 FPS
high	360 FPS	458 FPS
ultra	360 FPS	397 FPS
4K
low	360 FPS	460 FPS
medium	360 FPS	371 FPS
high	360 FPS	330 FPS
ultra	318 FPS	271 FPS

Open Core i7-9700K Open Core i7-12800HE

League of Legends

League of Legends

Valorant

Preset	Core i7-9700K	Core i7-12800HE
1080p
low	360 FPS	652 FPS
medium	360 FPS	652 FPS
high	360 FPS	652 FPS
ultra	360 FPS	625 FPS
1440p
low	360 FPS	652 FPS
medium	360 FPS	652 FPS
high	360 FPS	583 FPS
ultra	360 FPS	512 FPS
4K
low	360 FPS	522 FPS
medium	360 FPS	478 FPS
high	360 FPS	428 FPS
ultra	360 FPS	375 FPS

Open Core i7-9700K Open Core i7-12800HE

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-9700K and Core i7-12800HE

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 i7-12800HE

The Core i7-12800HE is manufactured by Intel. It was released in Janeiro 2022 (3 years ago). It is based on the Alder Lake-H (2022) architecture. It features 14 cores and 20 threads. Base frequency is 2.4 GHz, with boost up to 4.6 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR5 Dual-channel. Passmark benchmark score: 26,096 points. Launch price was $299.

⚡

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i7-12800HE offers 14 cores / 20 threads — the Core i7-12800HE has 6 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.6 GHz on the Core i7-12800HE — a 6.3% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 2.4 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i7-12800HE uses Alder Lake-H (2022) (10 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i7-12800HE's 26,096 — a 57.8% lead for the Core i7-12800HE. L3 cache: 12 MB (total) on the Core i7-9700K vs 24 MB (total) on the Core i7-12800HE.

Feature	Core i7-9700K	Core i7-12800HE
Cores / Threads	8 / 8	14 / 20+75%
Boost Clock	4.9 GHz+7%	4.6 GHz
Base Clock	3.6 GHz+50%	2.4 GHz
L3 Cache	12 MB (total)	24 MB (total)+100%
L2 Cache	256K (per core)	1.25 MB (per core)+400%
Process	14 nm	10 nm-29%
Architecture	Coffee Lake-R (2018−2019)	Alder Lake-H (2022)
PassMark	14,397	26,096+81%
Geekbench 6 Single	—	1,750
Geekbench 6 Multi	—	12,200

🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i7-12800HE uses FCBGA1744 (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 i7-12800HE — the Core i7-12800HE supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9700K supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-9700K) vs 28 (Core i7-12800HE) — the Core i7-12800HE offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and Alder Lake-H (Core i7-12800HE).

Feature	Core i7-9700K	Core i7-12800HE
Socket	LGA1151	FCBGA1744
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	DDR5-4800+25%
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	28+75%

🔧

Advanced Features

Only the Core i7-9700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support VT-x, VT-d virtualization. Both include integrated graphics — UHD Graphics 630 (Core i7-9700K) and Iris Xe Graphics (Core i7-12800HE) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop, Core i7-12800HE targets Embedded.