Core i7-12700K vs Core i9-7980XE

Intel

Core i7-12700K

12 Cores20 Thrd125 WWMax: 5 GHz2021

Popular choices:

VS
Intel

Core i9-7980XE

18 Cores36 Thrd165 WWMax: 4.4 GHz2017

Popular choices:

i7-12700K

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 i7-12700K

2021

Why buy it

  • Better for gaming: +31.9% higher average FPS across 50 shared CPU benchmark tests.
  • Costs $1,590 less on MSRP ($409 MSRP vs $1,999 MSRP).
  • Delivers 466.5% more PassMark for each dollar spent, at 84.0 vs 14.8 PassMark/$ ($409 MSRP vs $1,999 MSRP).
  • Draws 125W instead of 165W, a 40W reduction.
  • Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

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

Core i9-7980XE

2017

Why buy it

  • 120% more PCIe lanes (44 vs 20) for storage and expansion-heavy builds.

Trade-offs

  • Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
  • Lower PassMark (29,634 vs 34,347).
  • Lower PassMark per dollar, at 14.8 vs 84.0 PassMark/$ ($1,999 MSRP vs $409 MSRP).
  • 32% higher power demand at 165W vs 125W.
  • Older platform position on LGA2066 with DDR4, while Core i7-12700K moves to LGA1700 and DDR5.

Quick Answers

So, is Core i7-12700K better than Core i9-7980XE?
Yes. Core i7-12700K is the better overall CPU here. You are getting a 31.9% average FPS lead across 50 shared CPU game tests in our data, 15.9% 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 31.9% 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 15.9% better PassMark, backed by 12 cores and 20 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Core i7-12700K is the smarter buy today. Core i7-12700K is $1,590 cheaper on MSRP at $409 MSRP versus $1,999 MSRP, and it gives you a 31.9% average FPS lead across 50 shared CPU game tests in our data. It is also 466.5% better value on MSRP (84.0 vs 14.8 PassMark/$), 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 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, and more multi-core headroom with 12 cores / 20 threads instead of 18/36. 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 i7-12700KCore i9-7980XE
1080p
low314 FPS167 FPS
medium295 FPS147 FPS
high246 FPS116 FPS
ultra193 FPS97 FPS
1440p
low269 FPS140 FPS
medium225 FPS120 FPS
high182 FPS95 FPS
ultra145 FPS80 FPS
4K
low170 FPS78 FPS
medium142 FPS71 FPS
high109 FPS56 FPS
ultra96 FPS44 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-12700KCore i9-7980XE
1080p
low630 FPS470 FPS
medium533 FPS405 FPS
high450 FPS355 FPS
ultra410 FPS321 FPS
1440p
low536 FPS411 FPS
medium475 FPS361 FPS
high403 FPS319 FPS
ultra349 FPS277 FPS
4K
low312 FPS265 FPS
medium280 FPS232 FPS
high266 FPS220 FPS
ultra234 FPS190 FPS
League of Legends

League of Legends

PresetCore i7-12700KCore i9-7980XE
1080p
low797 FPS636 FPS
medium633 FPS530 FPS
high556 FPS480 FPS
ultra472 FPS417 FPS
1440p
low704 FPS567 FPS
medium565 FPS479 FPS
high490 FPS432 FPS
ultra422 FPS377 FPS
4K
low510 FPS431 FPS
medium425 FPS354 FPS
high381 FPS319 FPS
ultra321 FPS262 FPS
Valorant

Valorant

PresetCore i7-12700KCore i9-7980XE
1080p
low859 FPS741 FPS
medium802 FPS741 FPS
high699 FPS697 FPS
ultra628 FPS614 FPS
1440p
low760 FPS741 FPS
medium678 FPS680 FPS
high590 FPS578 FPS
ultra519 FPS501 FPS
4K
low535 FPS532 FPS
medium488 FPS479 FPS
high437 FPS422 FPS
ultra384 FPS365 FPS

Technical Specifications

Side-by-side comparison of Core i7-12700K and Core i9-7980XE

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.

Intel

Core i9-7980XE

The Core i9-7980XE is manufactured by Intel. It was released in 1 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 18 cores and 36 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 24.75 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: 29,634 points. Launch price was $1,999.

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Core i9-7980XE offers 18 cores / 36 threads — the Core i9-7980XE has 6 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.4 GHz on the Core i9-7980XE — a 12.8% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 2.6 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Core i9-7980XE uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-12700K scores 34,347 against the Core i9-7980XE's 29,634 — a 14.7% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 24.75 MB (total) on the Core i9-7980XE.

FeatureCore i7-12700KCore i9-7980XE
Cores / Threads
12 / 20
18 / 36+50%
Boost Clock
5 GHz+14%
4.4 GHz
Base Clock
3.6 GHz+38%
2.6 GHz
L3 Cache
25 MB (total)+1%
24.75 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+16%
29,634
🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Core i9-7980XE uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus DDR4-2666 on the Core i9-7980XE — the Core i7-12700K supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 of RAM. Memory channels: 2 (Core i7-12700K) vs 4 (Core i9-7980XE). PCIe lanes: 20 (Core i7-12700K) vs 44 (Core i9-7980XE) — the Core i9-7980XE offers 24 more lanes for additional GPUs or NVMe drives.

FeatureCore i7-12700KCore i9-7980XE
Socket
LGA1700
LGA2066
PCIe Generation
PCIe 5.0+67%
PCIe 3.0
Max RAM Speed
4800+119900%
DDR4-2666
Max RAM Capacity
128
128 GB+104857500%
RAM Channels
2
4+100%
ECC Support
Yes
No
PCIe Lanes
20
44+120%
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Core i9-7980XE supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Core i9-7980XE requires a dedicated GPU. Primary use case: Core i9-7980XE targets Workstation. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

FeatureCore i7-12700KCore i9-7980XE
Integrated GPU
Yes
No
IGPU Model
Intel UHD Graphics 770
Unlocked
Yes
Yes
AVX-512
No
Yes
Virtualization
VT-x, VT-d
VT-x, VT-d
Target Use
Workstation
💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Core i9-7980XE debuted at $1999. On MSRP ($409 vs $1999), the Core i7-12700K is $1590 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 14.8 pts/$ for the Core i9-7980XE — making the Core i7-12700K the 140% better value option.

FeatureCore i7-12700KCore i9-7980XE
MSRP
$409-80%
$1999
Performance per Dollar
84.0+468%
14.8
Release Date
2021
2017