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 i5-12400

2022

Why buy it

✅Costs $240 less on MSRP ($209 MSRP vs $449 MSRP).
✅Delivers 42.7% more PassMark for each dollar spent, at 89.9 vs 63.0 PassMark/$ ($209 MSRP vs $449 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with UHD Graphics 730, while Ryzen 7 5800X3D needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X3D across 41 shared CPU benchmark tests.
❌Lower PassMark (18,794 vs 28,298).

Ryzen 7 5800X3D

2022

Why buy it

✅Better for gaming: +15.0% higher average FPS across 41 shared CPU benchmark tests.
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 63.0 vs 89.9 PassMark/$ ($449 MSRP vs $209 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Core i5-12400 moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i5-12400 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-12400.

Core i5-12400

2022

Ryzen 7 5800X3D

2022

Why buy it

✅Costs $240 less on MSRP ($209 MSRP vs $449 MSRP).
✅Delivers 42.7% more PassMark for each dollar spent, at 89.9 vs 63.0 PassMark/$ ($209 MSRP vs $449 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with UHD Graphics 730, while Ryzen 7 5800X3D needs a discrete GPU.

Why buy it

✅Better for gaming: +15.0% higher average FPS across 41 shared CPU benchmark tests.
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X3D across 41 shared CPU benchmark tests.
❌Lower PassMark (18,794 vs 28,298).

Trade-offs

❌Lower PassMark per dollar, at 63.0 vs 89.9 PassMark/$ ($449 MSRP vs $209 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Core i5-12400 moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i5-12400 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-12400.

Quick Answers

So, is Ryzen 7 5800X3D better than Core i5-12400?

Yes. Ryzen 7 5800X3D is the better overall CPU here. You are getting a 15.0% average FPS lead across 41 shared CPU game tests in our data and 50.6% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 5800X3D is the better pick here. According to our tests, it delivers 15.0% more average FPS across 41 shared CPU game tests. It also has a big cache advantage at 96 MB vs 18 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X3D is the better fit. You are getting 50.6% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 433.3% larger total L3 cache (96 MB vs 18 MB).

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

Ryzen 7 5800X3D is still the faster CPU overall, but Core i5-12400 makes more sense if price matters more than absolute performance. Ryzen 7 5800X3D is 114.8% more expensive on MSRP at $449 MSRP versus $209 MSRP, and it gives you a 15.0% average FPS lead across 41 shared CPU game tests in our data. Core i5-12400 is also 42.7% better value on MSRP (89.9 vs 63.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper. That said, if you already own a compatible LGA1700 + DDR5 setup, Core i5-12400 can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

Which one is more future-proof for 2026 and beyond?

Core i5-12400 is the more future-proof choice for 2026 and beyond. You are getting a healthier platform with LGA1700 and DDR5 instead of AM4. 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 i5-12400 Benchmark Check

Ryzen 7 5800X3D Benchmark Check

Path of Exile 2

Preset	Core i5-12400	Ryzen 7 5800X3D
1080p
low	183 FPS	191 FPS
medium	168 FPS	165 FPS
high	139 FPS	131 FPS
ultra	119 FPS	111 FPS
1440p
low	153 FPS	161 FPS
medium	132 FPS	135 FPS
high	106 FPS	106 FPS
ultra	89 FPS	91 FPS
4K
low	87 FPS	85 FPS
medium	81 FPS	77 FPS
high	64 FPS	60 FPS
ultra	49 FPS	49 FPS

Open Core i5-12400 Open Ryzen 7 5800X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400	Ryzen 7 5800X3D
1080p
low	470 FPS	704 FPS
medium	397 FPS	615 FPS
high	341 FPS	496 FPS
ultra	301 FPS	432 FPS
1440p
low	407 FPS	570 FPS
medium	351 FPS	510 FPS
high	309 FPS	429 FPS
ultra	265 FPS	351 FPS
4K
low	282 FPS	332 FPS
medium	248 FPS	299 FPS
high	229 FPS	276 FPS
ultra	196 FPS	245 FPS

Open Core i5-12400 Open Ryzen 7 5800X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400	Ryzen 7 5800X3D
1080p
low	470 FPS	706 FPS
medium	470 FPS	607 FPS
high	470 FPS	566 FPS
ultra	470 FPS	498 FPS
1440p
low	470 FPS	568 FPS
medium	470 FPS	490 FPS
high	470 FPS	450 FPS
ultra	434 FPS	397 FPS
4K
low	442 FPS	410 FPS
medium	389 FPS	342 FPS
high	337 FPS	308 FPS
ultra	274 FPS	256 FPS

Open Core i5-12400 Open Ryzen 7 5800X3D

League of Legends

League of Legends

Valorant

Preset	Core i5-12400	Ryzen 7 5800X3D
1080p
low	470 FPS	707 FPS
medium	470 FPS	707 FPS
high	470 FPS	707 FPS
ultra	470 FPS	707 FPS
1440p
low	470 FPS	707 FPS
medium	470 FPS	707 FPS
high	470 FPS	703 FPS
ultra	470 FPS	625 FPS
4K
low	470 FPS	658 FPS
medium	450 FPS	590 FPS
high	391 FPS	531 FPS
ultra	330 FPS	437 FPS

Open Core i5-12400 Open Ryzen 7 5800X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400 and Ryzen 7 5800X3D

Core i5-12400

The Core i5-12400 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: 18,794 points. Launch price was $299.

Ryzen 7 5800X3D

The Ryzen 7 5800X3D is manufactured by AMD. It was released in 20 April 2022 (3 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 4.5 GHz. L3 cache: 96 MB (total). L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 28,298 points. Launch price was $449.

⚡

Processing Power

The Core i5-12400 packs 6 cores / 12 threads, while the Ryzen 7 5800X3D offers 8 cores / 16 threads — the Ryzen 7 5800X3D has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400 versus 4.5 GHz on the Ryzen 7 5800X3D — a 2.2% clock advantage for the Ryzen 7 5800X3D (base: 2.5 GHz vs 3.4 GHz). The Core i5-12400 uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 7 5800X3D uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Core i5-12400 scores 18,794 against the Ryzen 7 5800X3D's 28,298 — a 40.4% lead for the Ryzen 7 5800X3D. L3 cache: 18 MB (total) on the Core i5-12400 vs 96 MB (total) on the Ryzen 7 5800X3D.

Feature	Core i5-12400	Ryzen 7 5800X3D
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.4 GHz	4.5 GHz+2%
Base Clock	2.5 GHz	3.4 GHz+36%
L3 Cache	18 MB (total)	96 MB (total)+433%
L2 Cache	1.25 MB (per core)+150%	512 kB (per core)
Process	Intel 7 nm	7 nm, 12 nm
Architecture	Alder Lake-S (2022)	Vermeer (Zen3) (2020−2022)
PassMark	18,794	28,298+51%
Cinebench R23 Multi	12,400	—
Geekbench 6 Single	2,381	—
Geekbench 6 Multi	10,632	—

🧠

Memory & Platform

The Core i5-12400 uses the LGA1700 socket (PCIe 5.0), while the Ryzen 7 5800X3D uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400 versus DDR4-3200 on the Ryzen 7 5800X3D — the Core i5-12400 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400) vs 24 (Ryzen 7 5800X3D) — the Ryzen 7 5800X3D offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400) and AMD 500 series,AMD 400 series (Ryzen 7 5800X3D).

Feature	Core i5-12400	Ryzen 7 5800X3D
Socket	LGA1700	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-4800, DDR4-3200+25%	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	24+20%

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400) / not specified (Ryzen 7 5800X3D). The Core i5-12400 includes integrated graphics (UHD Graphics 730), while the Ryzen 7 5800X3D requires a dedicated GPU. Primary use case: Core i5-12400 targets Gaming Performance/Value. Direct competitor: Core i5-12400 rivals Ryzen 5 5600.

Feature	Core i5-12400	Ryzen 7 5800X3D
Integrated GPU	Yes	No
IGPU Model	UHD Graphics 730	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400 launched at $209 MSRP, while the Ryzen 7 5800X3D debuted at $449. On MSRP ($209 vs $449), the Core i5-12400 is $240 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400 delivers 89.9 pts/$ vs 63.0 pts/$ for the Ryzen 7 5800X3D — making the Core i5-12400 the 35.2% better value option.