Core i5-1135G7 vs Core i7-12700K

Intel

Core i5-1135G7

4 Cores8 Thrd15 WWMax: 4.2 GHz2020

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 i5-1135G7

2020

Why buy it

  • Draws 15W instead of 125W, a 110W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Core i7-12700K across 4 shared CPU benchmark tests.
  • Lower PassMark (9,414 vs 34,347).
  • Smaller total L3 cache (8 MB vs 25 MB).
  • Older platform position on FCBGA1449 with DDR4, while Core i7-12700K moves to LGA1700 and DDR5.

Core i7-12700K

2021

Why buy it

  • Better for gaming: +159.2% higher average FPS across 4 shared CPU benchmark tests.
  • +212.5% larger total L3 cache (25 MB vs 8 MB).
  • Newer platform on LGA1700 with DDR5 support instead of FCBGA1449 and DDR4.
  • 25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.

Trade-offs

  • Launch MSRP is still $409 MSRP, while Core i5-1135G7 mostly shows up through inconsistent older-market listings.
  • 733.3% higher power demand at 125W vs 15W.

Quick Answers

So, is Core i7-12700K better than Core i5-1135G7?
Yes. Core i7-12700K is the better overall CPU here. You are getting a 159.2% average FPS lead across 4 shared CPU game tests in our data, 264.9% 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 159.2% more average FPS across 4 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 264.9% better PassMark, backed by 12 cores and 20 threads. It also carries the larger cache pool with 212.5% larger total L3 cache (25 MB vs 8 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 at an unclear MSRP at $409 MSRP versus unclear MSRP, and it gives you a 159.2% average FPS lead across 4 shared CPU game tests in our data. It is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), 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 2020), a healthier platform with LGA1700 and DDR5 instead of FCBGA1449, 212.5% larger total L3 cache (25 MB vs 8 MB), and more multi-core headroom with 12 cores / 20 threads instead of 4/8. 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 i5-1135G7Core i7-12700K
1080p
low168 FPS314 FPS
medium137 FPS295 FPS
high107 FPS246 FPS
ultra85 FPS193 FPS
1440p
low145 FPS269 FPS
medium118 FPS225 FPS
high91 FPS182 FPS
ultra72 FPS145 FPS
4K
low68 FPS170 FPS
medium59 FPS142 FPS
high46 FPS109 FPS
ultra36 FPS96 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i5-1135G7Core i7-12700K
1080p
low153 FPS630 FPS
medium129 FPS533 FPS
high118 FPS450 FPS
ultra102 FPS410 FPS
1440p
low135 FPS536 FPS
medium115 FPS475 FPS
high107 FPS403 FPS
ultra92 FPS349 FPS
4K
low106 FPS312 FPS
medium93 FPS280 FPS
high80 FPS266 FPS
ultra67 FPS234 FPS
League of Legends

League of Legends

PresetCore i5-1135G7Core i7-12700K
1080p
low235 FPS797 FPS
medium235 FPS633 FPS
high235 FPS556 FPS
ultra235 FPS472 FPS
1440p
low235 FPS704 FPS
medium235 FPS565 FPS
high235 FPS490 FPS
ultra235 FPS422 FPS
4K
low235 FPS510 FPS
medium235 FPS425 FPS
high235 FPS381 FPS
ultra235 FPS321 FPS
Valorant

Valorant

PresetCore i5-1135G7Core i7-12700K
1080p
low235 FPS859 FPS
medium235 FPS802 FPS
high235 FPS699 FPS
ultra235 FPS628 FPS
1440p
low235 FPS760 FPS
medium235 FPS678 FPS
high235 FPS590 FPS
ultra235 FPS519 FPS
4K
low235 FPS535 FPS
medium235 FPS488 FPS
high235 FPS437 FPS
ultra235 FPS384 FPS

Technical Specifications

Side-by-side comparison of Core i5-1135G7 and Core i7-12700K

Intel

Core i5-1135G7

The Core i5-1135G7 is manufactured by Intel. It was released in 2 September 2020 (5 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 1.5 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 9,414 points. Launch price was $309.

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 i5-1135G7 packs 4 cores / 8 threads, while the Core i7-12700K offers 12 cores / 20 threads — the Core i7-12700K has 8 more cores. Boost clocks reach 4.2 GHz on the Core i5-1135G7 versus 5 GHz on the Core i7-12700K — a 17.4% clock advantage for the Core i7-12700K (base: 1.5 GHz vs 3.6 GHz). The Core i5-1135G7 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Core i7-12700K uses Alder Lake, Golden Cove, Gracemont (2021) (10 nm). In PassMark, the Core i5-1135G7 scores 9,414 against the Core i7-12700K's 34,347 — a 114% lead for the Core i7-12700K. L3 cache: 8 MB (total) on the Core i5-1135G7 vs 25 MB (total) on the Core i7-12700K.

FeatureCore i5-1135G7Core i7-12700K
Cores / Threads
4 / 8
12 / 20+200%
Boost Clock
4.2 GHz
5 GHz+19%
Base Clock
1.5 GHz
3.6 GHz+140%
L3 Cache
8 MB (total)
25 MB (total)+213%
L2 Cache
1.25 MB (per core)
1.25 MB (per core)
Process
10 nm SuperFin
10 nm
Architecture
Tiger Lake-UP3 (2020−2021)
Alder Lake, Golden Cove, Gracemont (2021)
PassMark
9,414
34,347+265%
Cinebench R23 Multi
5,183
Geekbench 6 Single
1,592
Geekbench 6 Multi
4,495
🧠

Memory & Platform

The Core i5-1135G7 uses the FCBGA1449 socket (PCIe 4.0), while the Core i7-12700K uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200, LPDDR4x-4267 on the Core i5-1135G7 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. The Core i7-12700K supports up to 128 of RAM compared to 64 GB 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-1135G7) vs 20 (Core i7-12700K) — the Core i7-12700K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Core i5-1135G7) and Z690,B660 (Core i7-12700K).

FeatureCore i5-1135G7Core i7-12700K
Socket
FCBGA1449
LGA1700
PCIe Generation
PCIe 4.0
PCIe 5.0+25%
Max RAM Speed
DDR4-3200, LPDDR4x-4267
4800+119900%
Max RAM Capacity
64 GB+52428700%
128
RAM Channels
2
2
ECC Support
No
Yes
PCIe Lanes
16
20+25%
🔧

Advanced Features

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i5-1135G7 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d, EPT (Core i5-1135G7) vs VT-x, VT-d (Core i7-12700K). Both include integrated graphics Iris Xe Graphics (80 EU) (Core i5-1135G7) 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 i5-1135G7 targets Productivity. Direct competitor: Core i5-1135G7 rivals Ryzen 5 5500U; Core i7-12700K rivals Ryzen 7 5800X.

FeatureCore i5-1135G7Core i7-12700K
Integrated GPU
Yes
Yes
IGPU Model
Iris Xe Graphics (80 EU)
Intel UHD Graphics 770
Unlocked
No
Yes
AVX-512
Yes
No
Virtualization
VT-x, VT-d, EPT
VT-x, VT-d
Target Use
Productivity