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

✅Costs $340 less on MSRP ($409 MSRP vs $749 MSRP).
✅Delivers 63.3% more PassMark for each dollar spent, at 84.0 vs 51.4 PassMark/$ ($409 MSRP vs $749 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 9 3950X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 38,519).
❌Smaller total L3 cache (25 MB vs 64 MB).
❌19% higher power demand at 125W vs 105W.

Ryzen 9 3950X

2019

Why buy it

✅Better for gaming: +10.0% higher average FPS across 4 shared CPU benchmark tests.
✅+156% larger total L3 cache (64 MB vs 25 MB).
✅Draws 105W instead of 125W, a 20W reduction.
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 84.0 PassMark/$ ($749 MSRP vs $409 MSRP).
❌Older platform position on AM4 with DDR4, while Core i7-12700K moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Core i7-12700K

2021

Ryzen 9 3950X

2019

Why buy it

✅Costs $340 less on MSRP ($409 MSRP vs $749 MSRP).
✅Delivers 63.3% more PassMark for each dollar spent, at 84.0 vs 51.4 PassMark/$ ($409 MSRP vs $749 MSRP).
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 9 3950X needs a discrete GPU.

Why buy it

✅Better for gaming: +10.0% higher average FPS across 4 shared CPU benchmark tests.
✅+156% larger total L3 cache (64 MB vs 25 MB).
✅Draws 105W instead of 125W, a 20W reduction.
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 3950X across 4 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 38,519).
❌Smaller total L3 cache (25 MB vs 64 MB).
❌19% higher power demand at 125W vs 105W.

Trade-offs

❌Lower PassMark per dollar, at 51.4 vs 84.0 PassMark/$ ($749 MSRP vs $409 MSRP).
❌Older platform position on AM4 with DDR4, while Core i7-12700K moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 3950X better than Core i7-12700K?

Yes. Ryzen 9 3950X is the better overall CPU here. You are getting a 10.0% average FPS lead across 4 shared CPU game tests in our data and 12.1% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 3950X is the better pick here. According to our tests, it delivers 10.0% 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, Ryzen 9 3950X is the better fit. You are getting 12.1% better PassMark, backed by 16 cores and 32 threads. It also carries the larger cache pool with 156% larger total L3 cache (64 MB vs 25 MB).

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

Ryzen 9 3950X is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Ryzen 9 3950X is 83.1% more expensive on MSRP at $749 MSRP versus $409 MSRP, and it gives you a 10.0% average FPS lead across 4 shared CPU game tests in our data. Core i7-12700K is also 63.3% better value on MSRP (84.0 vs 51.4 PassMark/$), 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 i7-12700K 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 i7-12700K is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2019) and 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 i7-12700K Benchmark Check

Ryzen 9 3950X Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Ryzen 9 3950X
1080p
low	314 FPS	207 FPS
medium	295 FPS	182 FPS
high	246 FPS	147 FPS
ultra	193 FPS	119 FPS
1440p
low	269 FPS	167 FPS
medium	225 FPS	138 FPS
high	182 FPS	109 FPS
ultra	145 FPS	91 FPS
4K
low	170 FPS	89 FPS
medium	142 FPS	79 FPS
high	109 FPS	62 FPS
ultra	96 FPS	50 FPS

Open Core i7-12700K Open Ryzen 9 3950X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Ryzen 9 3950X
1080p
low	630 FPS	701 FPS
medium	533 FPS	616 FPS
high	450 FPS	497 FPS
ultra	410 FPS	438 FPS
1440p
low	536 FPS	580 FPS
medium	475 FPS	519 FPS
high	403 FPS	439 FPS
ultra	349 FPS	360 FPS
4K
low	312 FPS	340 FPS
medium	280 FPS	306 FPS
high	266 FPS	283 FPS
ultra	234 FPS	252 FPS

Open Core i7-12700K Open Ryzen 9 3950X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Ryzen 9 3950X
1080p
low	797 FPS	871 FPS
medium	633 FPS	701 FPS
high	556 FPS	623 FPS
ultra	472 FPS	520 FPS
1440p
low	704 FPS	710 FPS
medium	565 FPS	572 FPS
high	490 FPS	498 FPS
ultra	422 FPS	422 FPS
4K
low	510 FPS	494 FPS
medium	425 FPS	412 FPS
high	381 FPS	365 FPS
ultra	321 FPS	307 FPS

Open Core i7-12700K Open Ryzen 9 3950X

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Ryzen 9 3950X
1080p
low	859 FPS	963 FPS
medium	802 FPS	963 FPS
high	699 FPS	887 FPS
ultra	628 FPS	796 FPS
1440p
low	760 FPS	883 FPS
medium	678 FPS	772 FPS
high	590 FPS	678 FPS
ultra	519 FPS	597 FPS
4K
low	535 FPS	649 FPS
medium	488 FPS	577 FPS
high	437 FPS	513 FPS
ultra	384 FPS	437 FPS

Open Core i7-12700K Open Ryzen 9 3950X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 9 3950X

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.

Ryzen 9 3950X

The Ryzen 9 3950X is manufactured by AMD. It was released in 14 November 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 16 cores and 32 threads. Base frequency is 3.5 GHz, with boost up to 4.7 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 38,519 points. Launch price was $799.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 9 3950X offers 16 cores / 32 threads — the Ryzen 9 3950X has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.7 GHz on the Ryzen 9 3950X — a 6.2% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3.5 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 9 3950X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 9 3950X's 38,519 — a 11.5% lead for the Ryzen 9 3950X. L3 cache: 25 MB (total) on the Core i7-12700K vs 64 MB on the Ryzen 9 3950X.

Feature	Core i7-12700K	Ryzen 9 3950X
Cores / Threads	12 / 20	16 / 32+33%
Boost Clock	5 GHz+6%	4.7 GHz
Base Clock	3.6 GHz+3%	3.5 GHz
L3 Cache	25 MB (total)	64 MB+156%
L2 Cache	1.25 MB (per core)+150%	512K (per core)
Process	10 nm	7 nm, 12 nm-30%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Matisse (Zen 2) (2019−2020)
PassMark	34,347	38,519+12%

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 3950X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus DDR4-3200 on the Ryzen 9 3950X — the Core i7-12700K supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i7-12700K) vs 24 (Ryzen 9 3950X) — the Ryzen 9 3950X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and X570,B550 (Ryzen 9 3950X).

Feature	Core i7-12700K	Ryzen 9 3950X
Socket	LGA1700	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	4800+119900%	DDR4-3200
Max RAM Capacity	128	128 GB+104857500%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	20	24+20%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x, VT-d (Core i7-12700K) vs AMD-V (Ryzen 9 3950X). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Ryzen 9 3950X requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

Feature	Core i7-12700K	Ryzen 9 3950X
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	—
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Ryzen 9 3950X debuted at $749. On MSRP ($409 vs $749), the Core i7-12700K is $340 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 51.4 pts/$ for the Ryzen 9 3950X — making the Core i7-12700K the 48.1% better value option.