Core i7-12700F vs Ryzen 9 3900

CPU

GPU

Core i7-12700F

12 Cores20 Thrd65 WWMax: 4.9 GHz2022

Core family

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Ryzen 9 3900

12 Cores24 Thrd65 WWMax: 4.3 GHz2019

Ryzen family

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Core i7-12700F vs Ryzen 9 3900 Performance Spectrum

Core i7-12700F

12 / 20

30,332

0.0%

30,588

+0.8%

Ryzen Threadripper 3970X

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 5995WX

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.

Core i7-12700F vs Ryzen 9 3900 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i7-12700F vs Ryzen 9 3900: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i7-12700F

2022

Why buy it

✅Better for gaming: +8.4% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $185 less on MSRP ($314 MSRP vs $499 MSRP).
✅Delivers 57.6% more PassMark for each dollar spent, at 96.6 vs 61.3 PassMark/$ ($314 MSRP vs $499 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Smaller total L3 cache (25 MB vs 64 MB).

Ryzen 9 3900

2019

Why buy it

✅+156% larger total L3 cache (64 MB vs 25 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700F across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (17,700 vs 21,500).
❌Lower PassMark per dollar, at 61.3 vs 96.6 PassMark/$ ($499 MSRP vs $314 MSRP).
❌Older platform position on AM4 with DDR4, while Core i7-12700F moves to LGA1700 and DDR5.

Quick Answers

So, is Core i7-12700F better than Ryzen 9 3900?

Yes. Core i7-12700F is the better all-around CPU here. It gives you a 8.4% average FPS lead across 50 shared CPU game tests in our data, 21.5% better Cinebench R23 multi-core, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-12700F is the better pick. According to our tests, it delivers 8.4% 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 i7-12700F is the stronger fit. You are getting 21.5% better Cinebench R23 multi-core, backed by 12 cores and 20 threads.

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

Core i7-12700F is the better buy right now. Core i7-12700F comes in $185 cheaper on MSRP at $314 MSRP versus $499 MSRP, and it still gives you a 8.4% average FPS lead across 50 shared CPU game tests in our data. It is also 57.6% better value on MSRP (96.6 vs 61.3 PassMark/$), so you are getting the faster CPU without taking a value hit on paper. That said, if you already own a compatible AM4 + DDR4 setup, Ryzen 9 3900 can still make sense as a platform-matched option because it avoids a motherboard and RAM swap, but on MSRP alone you would want to find it meaningfully cheaper in real-world listings before that path becomes easy to justify.

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

Core i7-12700F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2019), a healthier platform with LGA1700 and DDR5 instead of AM4, and more multi-core headroom with 12 cores / 20 threads instead of 12/24. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-12700F vs Ryzen 9 3900 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i7-12700F

The Core i7-12700F 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 12 cores and 20 threads. Base frequency is 2.1 GHz, with boost up to 4.9 GHz. L3 cache: 25 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: 30,332 points. Launch price was $386.

Ryzen 9 3900

The Ryzen 9 3900 is manufactured by AMD. It was released in 24 September 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.1 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 30,588 points. Launch price was $499.

⚡

Processing Power

The Core i7-12700F packs 12 cores / 20 threads, matching the Ryzen 9 3900's 12 cores. Boost clocks reach 4.9 GHz on the Core i7-12700F versus 4.3 GHz on the Ryzen 9 3900 — a 13% clock advantage for the Core i7-12700F (base: 2.1 GHz vs 3.1 GHz). The Core i7-12700F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 9 3900 uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Core i7-12700F scores 30,332 against the Ryzen 9 3900's 30,588 — a 0.8% lead for the Ryzen 9 3900. Cinebench R23 multi-core: 21,500 vs 17,700 (19.4% advantage for the Core i7-12700F). Geekbench 6 single-core — the metric most relevant to gaming — records 2,388 vs 1,713, a 32.9% lead for the Core i7-12700F that directly translates to higher frame rates. Multi-core Geekbench: 12,448 vs 10,983 (12.5% advantage for the Core i7-12700F). L3 cache: 25 MB (total) on the Core i7-12700F vs 64 MB on the Ryzen 9 3900.

Feature	Core i7-12700F	Ryzen 9 3900
Cores / Threads	12 / 20	12 / 24
Boost Clock	4.9 GHz+14%	4.3 GHz
Base Clock	2.1 GHz	3.1 GHz+48%
L3 Cache	25 MB (total)	64 MB+156%
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)	Matisse (Zen 2) (2019−2020)
PassMark	30,332	30,588
Cinebench R23 Multi	21,500+21%	17,700
Geekbench 6 Single	2,388+39%	1,713
Geekbench 6 Multi	12,448+13%	10,983

🧠

Memory & Platform

The Core i7-12700F uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 3900 uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i7-12700F versus DDR4-3200 on the Ryzen 9 3900 — the Core i7-12700F supports 50% 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 i7-12700F) vs 24 (Ryzen 9 3900) — the Ryzen 9 3900 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z790,B760,Z690,B660 (Core i7-12700F) and X570,B550,X470,B450 (Ryzen 9 3900).

Feature	Core i7-12700F	Ryzen 9 3900
Socket	LGA1700	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-4800+50%	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	24+20%

🔧

Advanced Features

Only the Ryzen 9 3900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d, EPT (Core i7-12700F) vs AMD-V (Ryzen 9 3900). Primary use case: Core i7-12700F targets High-performance Gaming / Productivity, Ryzen 9 3900 targets Workstation Desktop (low power). Direct competitor: Core i7-12700F rivals Ryzen 7 5800X; Ryzen 9 3900 rivals Core i9-9900.

Feature	Core i7-12700F	Ryzen 9 3900
Integrated GPU	No	No
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d, EPT	AMD-V
Target Use	High-performance Gaming / Productivity	Workstation Desktop (low power)

💰

Value Analysis

At launch, the Core i7-12700F was priced at $314, while the Ryzen 9 3900 came in at $499. On launch pricing ($314 vs $499), Core i7-12700F was $185 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700F delivers 96.6 pts/$ vs 61.3 pts/$ for the Ryzen 9 3900 — making the Core i7-12700F the 44.7% better value option.

Feature	Core i7-12700F	Ryzen 9 3900
MSRP	$314-37%	$499
Performance per Dollar	96.6+58%	61.3
Release Date	2022	2019

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