Core i7-9700K vs Core i7-12700K

Intel

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Popular choices:

i7-12700K
VS
Intel

Core i7-12700K

12 Cores20 Thrd125 WWMax: 5 GHz2021

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 $24 less on MSRP ($385 MSRP vs $409 MSRP).
  • Draws 95W instead of 125W, a 30W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Core i7-12700K across 5 shared CPU benchmark tests.
  • Lower PassMark (14,397 vs 34,347).
  • Smaller total L3 cache (12 MB vs 25 MB).
  • Lower PassMark per dollar, at 37.4 vs 84.0 PassMark/$ ($385 MSRP vs $409 MSRP).
  • Older platform position on LGA1151 with DDR4, while Core i7-12700K moves to LGA1700 and DDR5.

Core i7-12700K

2021

Why buy it

  • Better for gaming: +40.8% higher average FPS across 5 shared CPU benchmark tests.
  • +108.3% larger total L3 cache (25 MB vs 12 MB).
  • Delivers 124.6% more PassMark for each dollar spent, at 84.0 vs 37.4 PassMark/$ ($409 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

  • 6.2% HIGHER MSRP
    $409 MSRPvs$385 MSRP
  • 31.6% higher power demand at 125W vs 95W.

Quick Answers

So, is Core i7-12700K better than Core i7-9700K?
Yes. Core i7-12700K is the better overall CPU here. You are getting a 40.8% average FPS lead across 5 shared CPU game tests in our data, 138.6% 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 i7-12700K is the better pick here. According to our tests, it delivers 40.8% 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 i7-12700K is the better fit. You are getting 138.6% better PassMark, backed by 12 cores and 20 threads. It also carries 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 i7-12700K is the smarter buy today. Core i7-12700K is 6.2% more expensive on MSRP at $409 MSRP versus $385 MSRP, and it gives you a 40.8% average FPS lead across 5 shared CPU game tests in our data. It is also 124.6% better value on MSRP (84.0 vs 37.4 PassMark/$), 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 i7-12700K is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2018), a healthier platform with LGA1700 and DDR5 instead of LGA1151, 108.3% larger total L3 cache (25 MB vs 12 MB), and more multi-core headroom with 12 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 i7-12700K
1080p
low308 FPS314 FPS
medium278 FPS295 FPS
high231 FPS246 FPS
ultra182 FPS193 FPS
1440p
low270 FPS269 FPS
medium221 FPS225 FPS
high178 FPS182 FPS
ultra143 FPS145 FPS
4K
low170 FPS170 FPS
medium140 FPS142 FPS
high108 FPS109 FPS
ultra95 FPS96 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-9700KCore i7-12700K
1080p
low360 FPS630 FPS
medium321 FPS533 FPS
high291 FPS450 FPS
ultra259 FPS410 FPS
1440p
low324 FPS536 FPS
medium282 FPS475 FPS
high258 FPS403 FPS
ultra225 FPS349 FPS
4K
low249 FPS312 FPS
medium221 FPS280 FPS
high208 FPS266 FPS
ultra179 FPS234 FPS
League of Legends

League of Legends

PresetCore i7-9700KCore i7-12700K
1080p
low360 FPS797 FPS
medium360 FPS633 FPS
high360 FPS556 FPS
ultra360 FPS472 FPS
1440p
low360 FPS704 FPS
medium360 FPS565 FPS
high360 FPS490 FPS
ultra360 FPS422 FPS
4K
low360 FPS510 FPS
medium360 FPS425 FPS
high360 FPS381 FPS
ultra318 FPS321 FPS
Valorant

Valorant

PresetCore i7-9700KCore i7-12700K
1080p
low360 FPS859 FPS
medium360 FPS802 FPS
high360 FPS699 FPS
ultra360 FPS628 FPS
1440p
low360 FPS760 FPS
medium360 FPS678 FPS
high360 FPS590 FPS
ultra360 FPS519 FPS
4K
low360 FPS535 FPS
medium360 FPS488 FPS
high360 FPS437 FPS
ultra360 FPS384 FPS

Technical Specifications

Side-by-side comparison of Core i7-9700K and Core i7-12700K

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 i7-12700K

The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.

Processing Power

The Core i7-9700K packs 8 cores / 8 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core i7-12700K has 4 more cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 5 GHz on the Core i7-12700K — a 2% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.6 GHz). The Core i7-9700K uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the Core i7-9700K scores 14,397 against the Core i7-12700K's 34,347 — a 81.9% lead for the Core i7-12700K. L3 cache: 12 MB (total) on the Core i7-9700K vs 25 MB (total) on the Core i7-12700K.

FeatureCore i7-9700KCore i7-12700K
Cores / Threads
8 / 8
12 / 20+50%
Boost Clock
4.9 GHz
5 GHz+2%
Base Clock
3.6 GHz
3.6 GHz
L3 Cache
12 MB (total)
25 MB (total)+108%
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, Golden Cove, Gracemont (2021)
PassMark
14,397
34,347+139%
🧠

Memory & Platform

The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Core i7-12700K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i7-9700K versus 4800 on the Core i7-12700K — the Core i7-12700K supports 199.7% 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 i7-12700K) — the Core i7-12700K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 300 series (Core i7-9700K) and Z690,B660 (Core i7-12700K).

FeatureCore i7-9700KCore i7-12700K
Socket
LGA1151
LGA1700
PCIe Generation
PCIe 3.0
PCIe 5.0+67%
Max RAM Speed
DDR4-2666
4800+119900%
Max RAM Capacity
128 GB+104857500%
128
RAM Channels
2
2
ECC Support
No
Yes
PCIe Lanes
16
20+25%
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics UHD Graphics 630 (Core i7-9700K) and Intel UHD Graphics 770 (Core i7-12700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-9700K targets Desktop. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

FeatureCore i7-9700KCore i7-12700K
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
Target Use
Desktop
💰

Value Analysis

The Core i7-9700K launched at $385 MSRP, while the Core i7-12700K debuted at $409. On MSRP ($385 vs $409), the Core i7-9700K is $24 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-9700K delivers 37.4 pts/$ vs 84.0 pts/$ for the Core i7-12700K — making the Core i7-12700K the 76.8% better value option.

FeatureCore i7-9700KCore i7-12700K
MSRP
$385-6%
$409
Performance per Dollar
37.4
84.0+125%
Release Date
2018
2021