Core i7-9700K vs Core i7-12800H

Intel

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Popular choices:

VS
Intel

Core i7-12800H

14 Cores20 Thrd45 WWMax: 4.8 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

  • 100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with UHD Graphics 630, while Core i7-12800H needs a discrete GPU.

Trade-offs

  • Worse for gaming: lower average FPS than Core i7-12800H across 4 shared CPU benchmark tests.
  • Lower PassMark (14,397 vs 24,119).
  • Smaller total L3 cache (12 MB vs 24 MB).
  • Launch MSRP is still $385 MSRP, while Core i7-12800H mostly shows up through inconsistent older-market listings.
  • 111.1% higher power demand at 95W vs 45W.

Core i7-12800H

2022

Why buy it

  • Better for gaming: +40.2% higher average FPS across 4 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.

Trade-offs

  • No integrated graphics, while Core i7-9700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-12800H better than Core i7-9700K?
Yes. Core i7-12800H is the better overall CPU here. You are getting a 40.2% average FPS lead across 4 shared CPU game tests in our data, 67.5% 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 i7-12800H is the better pick here. According to our tests, it delivers 40.2% 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 i7-12800H is the better fit. You are getting 67.5% 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 i7-12800H is the smarter buy by a wide margin for a fresh build. Core i7-12800H is at an unclear MSRP at unclear MSRP versus $385 MSRP, and it gives you a 40.2% average FPS lead across 4 shared CPU game tests in our data. Core i7-9700K only looks stronger on raw value math because it is extremely cheap, but that is mostly used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (37.4 vs 0.0 PassMark/$), 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 i7-12800H 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.

Path of Exile 2

Path of Exile 2

PresetCore i7-9700KCore i7-12800H
1080p
low308 FPS267 FPS
medium278 FPS257 FPS
high231 FPS213 FPS
ultra182 FPS183 FPS
1440p
low270 FPS229 FPS
medium221 FPS197 FPS
high178 FPS159 FPS
ultra143 FPS139 FPS
4K
low170 FPS159 FPS
medium140 FPS136 FPS
high108 FPS106 FPS
ultra95 FPS93 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-9700KCore i7-12800H
1080p
low360 FPS578 FPS
medium321 FPS490 FPS
high291 FPS414 FPS
ultra259 FPS381 FPS
1440p
low324 FPS477 FPS
medium282 FPS420 FPS
high258 FPS365 FPS
ultra225 FPS319 FPS
4K
low249 FPS293 FPS
medium221 FPS261 FPS
high208 FPS246 FPS
ultra179 FPS219 FPS
League of Legends

League of Legends

PresetCore i7-9700KCore i7-12800H
1080p
low360 FPS603 FPS
medium360 FPS603 FPS
high360 FPS545 FPS
ultra360 FPS462 FPS
1440p
low360 FPS603 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 i7-12800H
1080p
low360 FPS603 FPS
medium360 FPS603 FPS
high360 FPS603 FPS
ultra360 FPS602 FPS
1440p
low360 FPS603 FPS
medium360 FPS603 FPS
high360 FPS571 FPS
ultra360 FPS497 FPS
4K
low360 FPS524 FPS
medium360 FPS475 FPS
high360 FPS422 FPS
ultra360 FPS367 FPS

Technical Specifications

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

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 i7-12800H

The Core i7-12800H 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 4.8 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 24,119 points. Launch price was $457.

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i7-12800H offers 14 cores / 20 threads — the Core i7-12800H has 6 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 4.8 GHz on the Core i7-12800H — a 2.1% 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 i7-12800H uses Alder Lake-H (2022) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i7-12800H's 24,119 — a 50.5% lead for the Core i7-12800H. L3 cache: 12 MB (total) on the Core i7-9700K vs 24 MB (total) on the Core i7-12800H.

FeatureCore i7-9700KCore i7-12800H
Cores / Threads
8 / 8
14 / 20+75%
Boost Clock
4.9 GHz+2%
4.8 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
Intel 7 nm-50%
Architecture
Coffee Lake-R (2018−2019)
Alder Lake-H (2022)
PassMark
14,397
24,119+68%
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Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i7-12800H uses FCBGA1744 (PCIe 4.0) — making them incompatible on the same motherboard.

FeatureCore i7-9700KCore i7-12800H
Socket
LGA1151
FCBGA1744
PCIe Generation
PCIe 3.0
PCIe 4.0+33%
Max RAM Speed
DDR4-2666
Max RAM Capacity
128 GB
RAM Channels
2
ECC Support
No
PCIe Lanes
16
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Advanced Features

Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (Core i7-12800H). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Core i7-12800H requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.

FeatureCore i7-9700KCore i7-12800H
Integrated GPU
Yes
IGPU Model
UHD Graphics 630
Unlocked
Yes
AVX-512
No
Virtualization
VT-x, VT-d
Target Use
Desktop