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 i7-12700K

2021

Why buy it

✅Better for gaming: +22.2% higher average FPS across 50 shared CPU benchmark tests.
✅+29.9% larger total L3 cache (25 MB vs 19 MB).
✅Costs $780 less on MSRP ($409 MSRP vs $1,189 MSRP).
✅Delivers 299.8% more PassMark for each dollar spent, at 84.0 vs 21.0 PassMark/$ ($409 MSRP vs $1,189 MSRP).
✅Draws 125W instead of 165W, a 40W reduction.

Trade-offs

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

Core i9-9920X

2018

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌Lower PassMark (24,974 vs 34,347).
❌Smaller total L3 cache (19 MB vs 25 MB).
❌Lower PassMark per dollar, at 21.0 vs 84.0 PassMark/$ ($1,189 MSRP vs $409 MSRP).
❌32% higher power demand at 165W vs 125W.

Core i7-12700K

2021

Core i9-9920X

2018

Why buy it

✅Better for gaming: +22.2% higher average FPS across 50 shared CPU benchmark tests.
✅+29.9% larger total L3 cache (25 MB vs 19 MB).
✅Costs $780 less on MSRP ($409 MSRP vs $1,189 MSRP).
✅Delivers 299.8% more PassMark for each dollar spent, at 84.0 vs 21.0 PassMark/$ ($409 MSRP vs $1,189 MSRP).
✅Draws 125W instead of 165W, a 40W reduction.

Why buy it

Trade-offs

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

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌Lower PassMark (24,974 vs 34,347).
❌Smaller total L3 cache (19 MB vs 25 MB).
❌Lower PassMark per dollar, at 21.0 vs 84.0 PassMark/$ ($1,189 MSRP vs $409 MSRP).
❌32% higher power demand at 165W vs 125W.

Quick Answers

So, is Core i7-12700K better than Core i9-9920X?

Yes. Core i7-12700K is the better overall CPU here. You are getting a 22.2% average FPS lead across 50 shared CPU game tests in our data, 37.5% 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 i7-12700K is the better pick here. According to our tests, it delivers 22.2% more average FPS across 50 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 37.5% better PassMark, backed by 12 cores and 20 threads. It also carries the larger cache pool with 29.9% larger total L3 cache (25 MB vs 19 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 $780 cheaper on MSRP at $409 MSRP versus $1,189 MSRP, and it gives you a 22.2% average FPS lead across 50 shared CPU game tests in our data. It is also 299.8% better value on MSRP (84.0 vs 21.0 PassMark/$), 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 LGA2066, 29.9% larger total L3 cache (25 MB vs 19 MB), and more multi-core headroom with 12 cores / 20 threads instead of 12/24. 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 i7-12700K Benchmark Check

Core i9-9920X Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Core i9-9920X
1080p
low	314 FPS	173 FPS
medium	295 FPS	150 FPS
high	246 FPS	121 FPS
ultra	193 FPS	102 FPS
1440p
low	269 FPS	145 FPS
medium	225 FPS	122 FPS
high	182 FPS	98 FPS
ultra	145 FPS	83 FPS
4K
low	170 FPS	77 FPS
medium	142 FPS	70 FPS
high	109 FPS	55 FPS
ultra	96 FPS	43 FPS

Open Core i7-12700K Open Core i9-9920X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Core i9-9920X
1080p
low	630 FPS	508 FPS
medium	533 FPS	437 FPS
high	450 FPS	374 FPS
ultra	410 FPS	339 FPS
1440p
low	536 FPS	438 FPS
medium	475 FPS	385 FPS
high	403 FPS	332 FPS
ultra	349 FPS	288 FPS
4K
low	312 FPS	271 FPS
medium	280 FPS	237 FPS
high	266 FPS	223 FPS
ultra	234 FPS	193 FPS

Open Core i7-12700K Open Core i9-9920X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Core i9-9920X
1080p
low	797 FPS	624 FPS
medium	633 FPS	547 FPS
high	556 FPS	499 FPS
ultra	472 FPS	435 FPS
1440p
low	704 FPS	577 FPS
medium	565 FPS	487 FPS
high	490 FPS	442 FPS
ultra	422 FPS	386 FPS
4K
low	510 FPS	444 FPS
medium	425 FPS	364 FPS
high	381 FPS	327 FPS
ultra	321 FPS	268 FPS

Open Core i7-12700K Open Core i9-9920X

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Core i9-9920X
1080p
low	859 FPS	624 FPS
medium	802 FPS	624 FPS
high	699 FPS	624 FPS
ultra	628 FPS	624 FPS
1440p
low	760 FPS	624 FPS
medium	678 FPS	624 FPS
high	590 FPS	624 FPS
ultra	519 FPS	620 FPS
4K
low	535 FPS	624 FPS
medium	488 FPS	582 FPS
high	437 FPS	521 FPS
ultra	384 FPS	437 FPS

Open Core i7-12700K Open Core i9-9920X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Core i9-9920X

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.

Core i9-9920X

The Core i9-9920X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 3.5 GHz, with boost up to 4.5 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 24,974 points. Launch price was $1,189.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, matching the Core i9-9920X's 12 cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.5 GHz on the Core i9-9920X — a 10.5% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.5 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Core i9-9920X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-12700K scores 34,347 against the Core i9-9920X's 24,974 — a 31.6% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 19.25 MB (total) on the Core i9-9920X.

Feature	Core i7-12700K	Core i9-9920X
Cores / Threads	12 / 20	12 / 24
Boost Clock	5 GHz+11%	4.5 GHz
Base Clock	3.6 GHz+3%	3.5 GHz
L3 Cache	25 MB (total)+30%	19.25 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	10 nm-29%	14 nm
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Skylake (server) (2017−2018)
PassMark	34,347+38%	24,974

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Core i9-9920X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-12700K	Core i9-9920X
Socket	LGA1700	LGA2066
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	4800	—
Max RAM Capacity	128	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i7-12700K) / not specified (Core i9-9920X). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Core i9-9920X requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

Feature	Core i7-12700K	Core i9-9920X
Integrated GPU	Yes	—
IGPU Model	Intel UHD Graphics 770	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Core i9-9920X debuted at $1189. On MSRP ($409 vs $1189), the Core i7-12700K is $780 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 21.0 pts/$ for the Core i9-9920X — making the Core i7-12700K the 120% better value option.