Core i7-12700K vs Ryzen 9 7940H

Intel

Core i7-12700K

12 Cores20 Thrd125 WWMax: 5 GHz2021

Popular choices:

VS
AMD

Ryzen 9 7940H

8 Cores16 Thrd35 WWMax: 5.2 GHz2023

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

  • +17.8% higher PassMark.
  • +56.3% larger total L3 cache (25 MB vs 16 MB).

Trade-offs

  • Worse for gaming: lower average FPS than Ryzen 9 7940H across 50 shared CPU benchmark tests.
  • Launch MSRP is still $409 MSRP, while Ryzen 9 7940H mostly shows up through inconsistent older-market listings.
  • 257.1% higher power demand at 125W vs 35W.

Ryzen 9 7940H

2023

Why buy it

  • Better for gaming: +10.1% higher average FPS across 50 shared CPU benchmark tests.
  • Draws 35W instead of 125W, a 90W reduction.

Trade-offs

  • Lower PassMark (29,151 vs 34,347).
  • Smaller total L3 cache (16 MB vs 25 MB).

Quick Answers

So, is Ryzen 9 7940H better than Core i7-12700K?
It depends on what matters more to you. For gaming, Ryzen 9 7940H is ahead with a 10.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-12700K pulls ahead with 17.8% better PassMark. Core i7-12700K also has the bigger cache pool with 56.3% larger total L3 cache (25 MB vs 16 MB).
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 17.8% better PassMark, backed by 12 cores and 20 threads. It also carries the larger cache pool with 56.3% larger total L3 cache (25 MB vs 16 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen 9 7940H is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Ryzen 9 7940H is at an unclear MSRP at unclear MSRP versus $409 MSRP, and it gives you a 10.1% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Core i7-12700K is still stronger for heavier multi-core work with 17.8% better PassMark. Core i7-12700K is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.
Which one is more future-proof for 2026 and beyond?
Ryzen 9 7940H is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 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 i7-12700KRyzen 9 7940H
1080p
low314 FPS268 FPS
medium295 FPS241 FPS
high246 FPS206 FPS
ultra193 FPS176 FPS
1440p
low269 FPS234 FPS
medium225 FPS191 FPS
high182 FPS158 FPS
ultra145 FPS138 FPS
4K
low170 FPS160 FPS
medium142 FPS132 FPS
high109 FPS102 FPS
ultra96 FPS89 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i7-12700KRyzen 9 7940H
1080p
low630 FPS502 FPS
medium533 FPS417 FPS
high450 FPS360 FPS
ultra410 FPS319 FPS
1440p
low536 FPS439 FPS
medium475 FPS385 FPS
high403 FPS332 FPS
ultra349 FPS282 FPS
4K
low312 FPS291 FPS
medium280 FPS267 FPS
high266 FPS251 FPS
ultra234 FPS216 FPS
League of Legends

League of Legends

PresetCore i7-12700KRyzen 9 7940H
1080p
low797 FPS729 FPS
medium633 FPS729 FPS
high556 FPS729 FPS
ultra472 FPS650 FPS
1440p
low704 FPS729 FPS
medium565 FPS637 FPS
high490 FPS548 FPS
ultra422 FPS464 FPS
4K
low510 FPS534 FPS
medium425 FPS460 FPS
high381 FPS409 FPS
ultra321 FPS344 FPS
Valorant

Valorant

PresetCore i7-12700KRyzen 9 7940H
1080p
low859 FPS729 FPS
medium802 FPS729 FPS
high699 FPS729 FPS
ultra628 FPS729 FPS
1440p
low760 FPS729 FPS
medium678 FPS729 FPS
high590 FPS716 FPS
ultra519 FPS631 FPS
4K
low535 FPS619 FPS
medium488 FPS553 FPS
high437 FPS496 FPS
ultra384 FPS434 FPS

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 9 7940H

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.

AMD

Ryzen 9 7940H

The Ryzen 9 7940H is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 4 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5-5600. Passmark benchmark score: 29,151 points. Launch price was $299.

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 9 7940H offers 8 cores / 16 threads — the Core i7-12700K has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 5.2 GHz on the Ryzen 9 7940H — a 3.9% clock advantage for the Ryzen 9 7940H (base: 3.6 GHz vs 4 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 9 7940H uses Phoenix (2023−2024) (4 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 9 7940H's 29,151 — a 16.4% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 16 MB (total) on the Ryzen 9 7940H.

FeatureCore i7-12700KRyzen 9 7940H
Cores / Threads
12 / 20+50%
8 / 16
Boost Clock
5 GHz
5.2 GHz+4%
Base Clock
3.6 GHz
4 GHz+11%
L3 Cache
25 MB (total)+56%
16 MB (total)
L2 Cache
1.25 MB (per core)+25%
1 MB (per core)
Process
10 nm
4 nm-60%
Architecture
Alder Lake, Golden Cove, Gracemont (2021)
Phoenix (2023−2024)
PassMark
34,347+18%
29,151
Cinebench R23 Multi
17,200
Geekbench 6 Single
2,646
Geekbench 6 Multi
13,495
🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 7940H uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus DDR5-5600 on the Ryzen 9 7940H — the Core i7-12700K supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 7940H supports up to 256 GB of RAM compared to 128 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: Z690,B660 (Core i7-12700K) and FP7,FP7r2,FP8 (Ryzen 9 7940H).

FeatureCore i7-12700KRyzen 9 7940H
Socket
LGA1700
FP8
PCIe Generation
PCIe 5.0+25%
PCIe 4.0
Max RAM Speed
4800+95900%
DDR5-5600
Max RAM Capacity
128
256 GB+209715100%
RAM Channels
2
2
ECC Support
Yes
Yes
PCIe Lanes
20
20
🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 7940H supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-12700K) vs AMD-V, SVM (Ryzen 9 7940H). Both include integrated graphics Intel UHD Graphics 770 (Core i7-12700K) and Radeon 780M (Ryzen 9 7940H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7940H targets High-performance Gaming Laptop. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Ryzen 9 7940H rivals Core i9-13900H.

FeatureCore i7-12700KRyzen 9 7940H
Integrated GPU
Yes
Yes
IGPU Model
Intel UHD Graphics 770
Radeon 780M
Unlocked
Yes
Yes
AVX-512
No
Yes
Virtualization
VT-x, VT-d
AMD-V, SVM
Target Use
High-performance Gaming Laptop