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 i5-12400F

2022

Why buy it

✅Better for gaming: +112.3% higher average FPS across 5 shared CPU benchmark tests.
✅+200% larger total L3 cache (18 MB vs 6 MB).
✅Costs $192 less on MSRP ($174 MSRP vs $366 MSRP).
✅Delivers 434.4% more PassMark for each dollar spent, at 112.3 vs 21.0 PassMark/$ ($174 MSRP vs $366 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of LGA1150 and older memory support.

Trade-offs

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

Core i7-5775C

2015

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 5 shared CPU benchmark tests.
❌Lower PassMark (7,688 vs 19,532).
❌Smaller total L3 cache (6 MB vs 18 MB).
❌Lower PassMark per dollar, at 21.0 vs 112.3 PassMark/$ ($366 MSRP vs $174 MSRP).
❌Older platform position on LGA1150, while Core i5-12400F moves to LGA1700 and DDR5.

Core i5-12400F

2022

Core i7-5775C

2015

Why buy it

✅Better for gaming: +112.3% higher average FPS across 5 shared CPU benchmark tests.
✅+200% larger total L3 cache (18 MB vs 6 MB).
✅Costs $192 less on MSRP ($174 MSRP vs $366 MSRP).
✅Delivers 434.4% more PassMark for each dollar spent, at 112.3 vs 21.0 PassMark/$ ($174 MSRP vs $366 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of LGA1150 and older memory support.

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 i5-12400F across 5 shared CPU benchmark tests.
❌Lower PassMark (7,688 vs 19,532).
❌Smaller total L3 cache (6 MB vs 18 MB).
❌Lower PassMark per dollar, at 21.0 vs 112.3 PassMark/$ ($366 MSRP vs $174 MSRP).
❌Older platform position on LGA1150, while Core i5-12400F moves to LGA1700 and DDR5.

Quick Answers

So, is Core i5-12400F better than Core i7-5775C?

Yes. Core i5-12400F is the better overall CPU here. You are getting a 112.3% average FPS lead across 5 shared CPU game tests in our data, 154.1% 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 i5-12400F is the better pick here. According to our tests, it delivers 112.3% more average FPS across 5 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-12400F is the better fit. You are getting 154.1% better PassMark, backed by 6 cores and 12 threads. It also carries the larger cache pool with 200% larger total L3 cache (18 MB vs 6 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Core i5-12400F is the smarter buy today. Core i5-12400F is $192 cheaper on MSRP at $174 MSRP versus $366 MSRP, and it gives you a 112.3% average FPS lead across 5 shared CPU game tests in our data. It is also 434.4% better value on MSRP (112.3 vs 21.0 PassMark/$), 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 i5-12400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2015), a healthier platform with LGA1700 and DDR5 instead of LGA1150, 200% larger total L3 cache (18 MB vs 6 MB), and more multi-core headroom with 6 cores / 12 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.

Core i5-12400F Benchmark Check

Core i7-5775C Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Core i7-5775C
1080p
low	183 FPS	167 FPS
medium	168 FPS	140 FPS
high	139 FPS	112 FPS
ultra	119 FPS	89 FPS
1440p
low	153 FPS	143 FPS
medium	132 FPS	118 FPS
high	106 FPS	93 FPS
ultra	89 FPS	73 FPS
4K
low	87 FPS	65 FPS
medium	81 FPS	57 FPS
high	64 FPS	45 FPS
ultra	49 FPS	35 FPS

Open Core i5-12400F Open Core i7-5775C

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Core i7-5775C
1080p
low	471 FPS	191 FPS
medium	397 FPS	166 FPS
high	341 FPS	155 FPS
ultra	301 FPS	121 FPS
1440p
low	407 FPS	164 FPS
medium	351 FPS	144 FPS
high	309 FPS	133 FPS
ultra	265 FPS	109 FPS
4K
low	282 FPS	129 FPS
medium	248 FPS	117 FPS
high	229 FPS	98 FPS
ultra	196 FPS	73 FPS

Open Core i5-12400F Open Core i7-5775C

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Core i7-5775C
1080p
low	488 FPS	192 FPS
medium	488 FPS	192 FPS
high	488 FPS	192 FPS
ultra	488 FPS	192 FPS
1440p
low	488 FPS	192 FPS
medium	488 FPS	192 FPS
high	485 FPS	192 FPS
ultra	434 FPS	192 FPS
4K
low	442 FPS	192 FPS
medium	389 FPS	192 FPS
high	337 FPS	192 FPS
ultra	274 FPS	192 FPS

Open Core i5-12400F Open Core i7-5775C

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Core i7-5775C
1080p
low	488 FPS	192 FPS
medium	488 FPS	192 FPS
high	488 FPS	192 FPS
ultra	488 FPS	192 FPS
1440p
low	488 FPS	192 FPS
medium	488 FPS	192 FPS
high	488 FPS	192 FPS
ultra	473 FPS	192 FPS
4K
low	488 FPS	192 FPS
medium	450 FPS	192 FPS
high	391 FPS	192 FPS
ultra	330 FPS	192 FPS

Open Core i5-12400F Open Core i7-5775C

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Core i7-5775C

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

Core i7-5775C

The Core i7-5775C is manufactured by Intel. It was released in 15 May 2015 (10 years ago). It is based on the Broadwell (2015−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1150. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 7,688 points. Launch price was $366.

⚡

Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Core i7-5775C offers 4 cores / 8 threads — the Core i5-12400F has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 3.7 GHz on the Core i7-5775C — a 17.3% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 3.3 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Core i7-5775C uses Broadwell (2015−2019) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Core i7-5775C's 7,688 — a 87% lead for the Core i5-12400F. L3 cache: 18 MB (total) on the Core i5-12400F vs 6 MB (total) on the Core i7-5775C.

Feature	Core i5-12400F	Core i7-5775C
Cores / Threads	6 / 12+50%	4 / 8
Boost Clock	4.4 GHz+19%	3.7 GHz
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	18 MB (total)+200%	6 MB (total)
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-S (2022)	Broadwell (2015−2019)
PassMark	19,532+154%	7,688
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Core i7-5775C uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-12400F	Core i7-5775C
Socket	LGA1700	LGA1150
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400F) / not specified (Core i7-5775C). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-12400F	Core i7-5775C
Integrated GPU	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400F launched at $174 MSRP, while the Core i7-5775C debuted at $366. On MSRP ($174 vs $366), the Core i5-12400F is $192 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 21.0 pts/$ for the Core i7-5775C — making the Core i5-12400F the 136.9% better value option.