Core 5 120 vs Core i7-12700K

Intel

Core 5 120

6 Cores12 Thrd65 WWMax: 4.5 GHz2025

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 5 120

2025

Why buy it

  • Costs $69 less on MSRP ($340 MSRP vs $409 MSRP).
  • Draws 65W instead of 125W, a 60W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
  • Lower PassMark (21,629 vs 34,347).
  • Smaller total L3 cache (18 MB vs 25 MB).
  • Lower PassMark per dollar, at 63.6 vs 84.0 PassMark/$ ($340 MSRP vs $409 MSRP).
  • No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Core i7-12700K

2021

Why buy it

  • Better for gaming: +33.2% higher average FPS across 50 shared CPU benchmark tests.
  • +38.9% larger total L3 cache (25 MB vs 18 MB).
  • Delivers 32.0% more PassMark for each dollar spent, at 84.0 vs 63.6 PassMark/$ ($409 MSRP vs $340 MSRP).
  • 100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with Intel UHD Graphics 770, while Core 5 120 needs a discrete GPU.

Trade-offs

  • 20.3% HIGHER MSRP
    $409 MSRPvs$340 MSRP
  • 92.3% higher power demand at 125W vs 65W.

Quick Answers

So, is Core i7-12700K better than Core 5 120?
Yes. Core i7-12700K is the better overall CPU here. You are getting a 33.2% average FPS lead across 50 shared CPU game tests in our data and 58.8% better PassMark, 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 33.2% 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 58.8% better PassMark, backed by 12 cores and 20 threads. It also carries the larger cache pool with 38.9% larger total L3 cache (25 MB vs 18 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 20.3% more expensive on MSRP at $409 MSRP versus $340 MSRP, and it gives you a 33.2% average FPS lead across 50 shared CPU game tests in our data. It is also 32.0% better value on MSRP (84.0 vs 63.6 PassMark/$), 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 5 120 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2021). That makes it the safer long-term pick.

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 5 120Core i7-12700K
1080p
low170 FPS314 FPS
medium147 FPS295 FPS
high118 FPS246 FPS
ultra99 FPS193 FPS
1440p
low145 FPS269 FPS
medium123 FPS225 FPS
high99 FPS182 FPS
ultra83 FPS145 FPS
4K
low79 FPS170 FPS
medium72 FPS142 FPS
high57 FPS109 FPS
ultra44 FPS96 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore 5 120Core i7-12700K
1080p
low471 FPS630 FPS
medium401 FPS533 FPS
high338 FPS450 FPS
ultra298 FPS410 FPS
1440p
low409 FPS536 FPS
medium355 FPS475 FPS
high309 FPS403 FPS
ultra264 FPS349 FPS
4K
low274 FPS312 FPS
medium243 FPS280 FPS
high223 FPS266 FPS
ultra191 FPS234 FPS
League of Legends

League of Legends

PresetCore 5 120Core i7-12700K
1080p
low541 FPS797 FPS
medium541 FPS633 FPS
high541 FPS556 FPS
ultra496 FPS472 FPS
1440p
low541 FPS704 FPS
medium491 FPS565 FPS
high445 FPS490 FPS
ultra388 FPS422 FPS
4K
low411 FPS510 FPS
medium347 FPS425 FPS
high303 FPS381 FPS
ultra244 FPS321 FPS
Valorant

Valorant

PresetCore 5 120Core i7-12700K
1080p
low541 FPS859 FPS
medium541 FPS802 FPS
high541 FPS699 FPS
ultra541 FPS628 FPS
1440p
low541 FPS760 FPS
medium541 FPS678 FPS
high541 FPS590 FPS
ultra534 FPS519 FPS
4K
low541 FPS535 FPS
medium499 FPS488 FPS
high440 FPS437 FPS
ultra376 FPS384 FPS

Technical Specifications

Side-by-side comparison of Core 5 120 and Core i7-12700K

Intel

Core 5 120

The Core 5 120 is manufactured by Intel. It was released in 31 July 2025 (less than a year ago). It is based on the Raptor Lake-R (2023−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.5 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 21,629 points. Launch price was $211.

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 5 120 packs 6 cores / 12 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core i7-12700K has 6 more cores. Boost clocks reach 4.5 GHz on the Core 5 120 versus 5 GHz on the Core i7-12700K — a 10.5% clock advantage for the Core i7-12700K (base: 2.5 GHz vs 3.6 GHz). The Core 5 120 uses the Raptor Lake-R (2023−2025) architecture (10 nm), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the Core 5 120 scores 21,629 against the Core i7-12700K's 34,347 — a 45.4% lead for the Core i7-12700K. L3 cache: 18 MB (total) on the Core 5 120 vs 25 MB (total) on the Core i7-12700K.

FeatureCore 5 120Core i7-12700K
Cores / Threads
6 / 12
12 / 20+100%
Boost Clock
4.5 GHz
5 GHz+11%
Base Clock
2.5 GHz
3.6 GHz+44%
L3 Cache
18 MB (total)
25 MB (total)+39%
L2 Cache
1.25 MB (per core)
1.25 MB (per core)
Process
10 nm
10 nm
Architecture
Raptor Lake-R (2023−2025)
Alder Lake, Golden Cove, Gracemont (2021)
PassMark
21,629
34,347+59%
🧠

Memory & Platform

Both processors use the LGA1700 socket with PCIe 5.0.

FeatureCore 5 120Core i7-12700K
Socket
LGA1700
LGA1700
PCIe Generation
PCIe 5.0
PCIe 5.0
Max RAM Speed
4800
Max RAM Capacity
128
RAM Channels
2
ECC Support
Yes
PCIe Lanes
20
🔧

Advanced Features

Virtualization: not specified (Core 5 120) / VT-x, VT-d (Core i7-12700K). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Core 5 120 requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

FeatureCore 5 120Core i7-12700K
Integrated GPU
Yes
IGPU Model
Intel UHD Graphics 770
Unlocked
Yes
AVX-512
No
Virtualization
VT-x, VT-d
💰

Value Analysis

The Core 5 120 launched at $340 MSRP, while the Core i7-12700K debuted at $409. On MSRP ($340 vs $409), the Core 5 120 is $69 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 5 120 delivers 63.6 pts/$ vs 84.0 pts/$ for the Core i7-12700K — making the Core i7-12700K the 27.6% better value option.

FeatureCore 5 120Core i7-12700K
MSRP
$340-17%
$409
Performance per Dollar
63.6
84.0+32%
Release Date
2025
2021