Core i7-9700K vs Core i9-12900KS

Intel

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Popular choices:

VS
Intel

Core i9-12900KS

16 Cores24 Thrd150 WWMax: 5.3 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 $354 less on MSRP ($385 MSRP vs $739 MSRP).
  • Draws 95W instead of 150W, a 55W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Core i9-12900KS across 4 shared CPU benchmark tests.
  • Lower PassMark (14,397 vs 43,528).
  • Smaller total L3 cache (12 MB vs 30 MB).
  • Lower PassMark per dollar, at 37.4 vs 58.9 PassMark/$ ($385 MSRP vs $739 MSRP).
  • Older platform position on LGA1151 with DDR4, while Core i9-12900KS moves to LGA1700 and DDR5.

Core i9-12900KS

2022

Why buy it

  • Better for gaming: +57.6% higher average FPS across 4 shared CPU benchmark tests.
  • +150% larger total L3 cache (30 MB vs 12 MB).
  • Delivers 57.5% more PassMark for each dollar spent, at 58.9 vs 37.4 PassMark/$ ($739 MSRP vs $385 MSRP).
  • Newer platform on LGA1700 with DDR5 support instead of LGA1151 and DDR4.
  • 25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.

Trade-offs

  • 91.9% HIGHER MSRP
    $739 MSRPvs$385 MSRP
  • 57.9% higher power demand at 150W vs 95W.

Quick Answers

So, is Core i9-12900KS better than Core i7-9700K?
Yes. Core i9-12900KS is the better overall CPU here. You are getting a 57.6% average FPS lead across 4 shared CPU game tests in our data, 202.3% 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 i9-12900KS is the better pick here. According to our tests, it delivers 57.6% 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 i9-12900KS is the better fit. You are getting 202.3% 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 i9-12900KS is the smarter buy today. Core i9-12900KS is 91.9% more expensive on MSRP at $739 MSRP versus $385 MSRP, and it gives you a 57.6% average FPS lead across 4 shared CPU game tests in our data. It is also 57.5% better value on MSRP (58.9 vs 37.4 PassMark/$), 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 i9-12900KS is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2018), a healthier platform with LGA1700 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 i9-12900KS
1080p
low308 FPS283 FPS
medium278 FPS269 FPS
high231 FPS225 FPS
ultra182 FPS192 FPS
1440p
low270 FPS235 FPS
medium221 FPS199 FPS
high178 FPS162 FPS
ultra143 FPS142 FPS
4K
low170 FPS158 FPS
medium140 FPS134 FPS
high108 FPS104 FPS
ultra95 FPS91 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-9700KCore i9-12900KS
1080p
low360 FPS716 FPS
medium321 FPS603 FPS
high291 FPS501 FPS
ultra259 FPS443 FPS
1440p
low324 FPS617 FPS
medium282 FPS541 FPS
high258 FPS454 FPS
ultra225 FPS380 FPS
4K
low249 FPS363 FPS
medium221 FPS326 FPS
high208 FPS306 FPS
ultra179 FPS263 FPS
League of Legends

League of Legends

PresetCore i7-9700KCore i9-12900KS
1080p
low360 FPS866 FPS
medium360 FPS686 FPS
high360 FPS605 FPS
ultra360 FPS502 FPS
1440p
low360 FPS748 FPS
medium360 FPS602 FPS
high360 FPS523 FPS
ultra360 FPS441 FPS
4K
low360 FPS523 FPS
medium360 FPS432 FPS
high360 FPS392 FPS
ultra318 FPS332 FPS
Valorant

Valorant

PresetCore i7-9700KCore i9-12900KS
1080p
low360 FPS973 FPS
medium360 FPS879 FPS
high360 FPS763 FPS
ultra360 FPS693 FPS
1440p
low360 FPS812 FPS
medium360 FPS723 FPS
high360 FPS626 FPS
ultra360 FPS556 FPS
4K
low360 FPS555 FPS
medium360 FPS502 FPS
high360 FPS449 FPS
ultra360 FPS396 FPS

Technical Specifications

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

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 i9-12900KS

The Core i9-12900KS is manufactured by Intel. It was released in 5 April 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 16 cores and 24 threads. Base frequency is 3.4 GHz, with boost up to 5.3 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 43,528 points. Launch price was $499.

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i9-12900KS offers 16 cores / 24 threads — the Core i9-12900KS has 8 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 5.3 GHz on the Core i9-12900KS — a 7.8% clock advantage for the Core i9-12900KS (base: 3.6 GHz vs 3.4 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i9-12900KS uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i9-12900KS's 43,528 — a 100.6% lead for the Core i9-12900KS. L3 cache: 12 MB (total) on the Core i7-9700K vs 30 MB (total) on the Core i9-12900KS.

FeatureCore i7-9700KCore i9-12900KS
Cores / Threads
8 / 8
16 / 24+100%
Boost Clock
4.9 GHz
5.3 GHz+8%
Base Clock
3.6 GHz+6%
3.4 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-S (2022)
PassMark
14,397
43,528+202%
Cinebench R23 Multi
27,796
Geekbench 6 Single
2,082
🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i9-12900KS uses LGA1700 (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 i9-12900KS — the Core i9-12900KS 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 20 (Core i9-12900KS) — the Core i9-12900KS offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and LGA1700 (Core i9-12900KS).

FeatureCore i7-9700KCore i9-12900KS
Socket
LGA1151
LGA1700
PCIe Generation
PCIe 3.0
PCIe 5.0+67%
Max RAM Speed
DDR4-2666
DDR5-4800+25%
Max RAM Capacity
128 GB
128 GB
RAM Channels
2
2
ECC Support
No
Yes
PCIe Lanes
16
20+25%
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Core i9-12900KS supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Both include integrated graphics UHD Graphics 630 (Core i7-9700K) and UHD 770 (Core i9-12900KS) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.

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

Value Analysis

The Core i7-9700K launched at $385 MSRP, while the Core i9-12900KS debuted at $739. On MSRP ($385 vs $739), the Core i7-9700K is $354 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 58.9 pts/$ for the Core i9-12900KS — making the Core i9-12900KS the 44.7% better value option.

FeatureCore i7-9700KCore i9-12900KS
MSRP
$385-48%
$739
Performance per Dollar
37.4
58.9+57%
Release Date
2018
2022