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

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 50 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 54,425).
❌Smaller total L3 cache (25 MB vs 64 MB).
❌Launch MSRP is still $409 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌127.3% higher power demand at 125W vs 55W.

Ryzen 9 7945HX

2023

Why buy it

✅Better for gaming: +9.8% higher average FPS across 50 shared CPU benchmark tests.
✅+156% larger total L3 cache (64 MB vs 25 MB).
✅Draws 55W instead of 125W, a 70W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Core i7-12700K.

Trade-offs

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

Core i7-12700K

2021

Ryzen 9 7945HX

2023

Why buy it

✅Better for gaming: +9.8% higher average FPS across 50 shared CPU benchmark tests.
✅+156% larger total L3 cache (64 MB vs 25 MB).
✅Draws 55W instead of 125W, a 70W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Core i7-12700K.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 50 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 54,425).
❌Smaller total L3 cache (25 MB vs 64 MB).
❌Launch MSRP is still $409 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌127.3% higher power demand at 125W vs 55W.

Trade-offs

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

Quick Answers

So, is Ryzen 9 7945HX better than Core i7-12700K?

Yes. Ryzen 9 7945HX is the better overall CPU here. You are getting a 9.8% average FPS lead across 50 shared CPU game tests in our data, 58.5% 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, Ryzen 9 7945HX is the better pick here. According to our tests, it delivers 9.8% 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, Ryzen 9 7945HX is the better fit. You are getting 58.5% 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 7945HX is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Ryzen 9 7945HX is at an unclear MSRP at unclear MSRP versus $409 MSRP, and it gives you a 9.8% average FPS lead across 50 shared CPU game tests in our data. Core i7-12700K is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Ryzen 9 7945HX is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), 156% larger total L3 cache (64 MB vs 25 MB), and more multi-core headroom with 16 cores / 32 threads instead of 12/20. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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 7945HX Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Ryzen 9 7945HX
1080p
low	314 FPS	301 FPS
medium	295 FPS	276 FPS
high	246 FPS	224 FPS
ultra	193 FPS	190 FPS
1440p
low	269 FPS	271 FPS
medium	225 FPS	226 FPS
high	182 FPS	172 FPS
ultra	145 FPS	153 FPS
4K
low	170 FPS	189 FPS
medium	142 FPS	157 FPS
high	109 FPS	119 FPS
ultra	96 FPS	107 FPS

Open Core i7-12700K Open Ryzen 9 7945HX

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Ryzen 9 7945HX
1080p
low	630 FPS	744 FPS
medium	533 FPS	620 FPS
high	450 FPS	466 FPS
ultra	410 FPS	397 FPS
1440p
low	536 FPS	630 FPS
medium	475 FPS	541 FPS
high	403 FPS	419 FPS
ultra	349 FPS	328 FPS
4K
low	312 FPS	355 FPS
medium	280 FPS	309 FPS
high	266 FPS	272 FPS
ultra	234 FPS	230 FPS

Open Core i7-12700K Open Ryzen 9 7945HX

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Ryzen 9 7945HX
1080p
low	797 FPS	893 FPS
medium	633 FPS	712 FPS
high	556 FPS	618 FPS
ultra	472 FPS	533 FPS
1440p
low	704 FPS	718 FPS
medium	565 FPS	572 FPS
high	490 FPS	487 FPS
ultra	422 FPS	418 FPS
4K
low	510 FPS	513 FPS
medium	425 FPS	427 FPS
high	381 FPS	383 FPS
ultra	321 FPS	323 FPS

Open Core i7-12700K Open Ryzen 9 7945HX

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Ryzen 9 7945HX
1080p
low	859 FPS	1129 FPS
medium	802 FPS	1006 FPS
high	699 FPS	873 FPS
ultra	628 FPS	768 FPS
1440p
low	760 FPS	900 FPS
medium	678 FPS	790 FPS
high	590 FPS	689 FPS
ultra	519 FPS	584 FPS
4K
low	535 FPS	648 FPS
medium	488 FPS	578 FPS
high	437 FPS	510 FPS
ultra	384 FPS	436 FPS

Open Core i7-12700K Open Ryzen 9 7945HX

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 9 7945HX

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 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 9 7945HX offers 16 cores / 32 threads — the Ryzen 9 7945HX has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 5.4 GHz on the Ryzen 9 7945HX — a 7.7% clock advantage for the Ryzen 9 7945HX (base: 3.6 GHz vs 2.5 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 9 7945HX uses Dragon Range-HX (Zen 4) (2023−2024) (CCD = 5 nm, I/O = 6 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 9 7945HX's 54,425 — a 45.2% lead for the Ryzen 9 7945HX. L3 cache: 25 MB (total) on the Core i7-12700K vs 64 MB (total) on the Ryzen 9 7945HX.

Feature	Core i7-12700K	Ryzen 9 7945HX
Cores / Threads	12 / 20	16 / 32+33%
Boost Clock	5 GHz	5.4 GHz+8%
Base Clock	3.6 GHz+44%	2.5 GHz
L3 Cache	25 MB (total)	64 MB (total)+156%
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	10 nm	CCD = 5 nm, I/O = 6 nm-50%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	34,347	54,425+58%
Cinebench R23 Multi	—	34,521
Geekbench 6 Single	—	2,774
Geekbench 6 Multi	—	16,214

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 7945HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus DDR5-5200 on the Ryzen 9 7945HX — the Core i7-12700K supports 199.6% 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: 20 (Core i7-12700K) vs 28 (Ryzen 9 7945HX) — the Ryzen 9 7945HX offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and FL1 (Ryzen 9 7945HX).

Feature	Core i7-12700K	Ryzen 9 7945HX
Socket	LGA1700	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	4800+95900%	DDR5-5200
Max RAM Capacity	128	64 GB+52428700%
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 7945HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-12700K) vs AMD-V (Ryzen 9 7945HX). Both include integrated graphics — Intel UHD Graphics 770 (Core i7-12700K) and Radeon 610M (Ryzen 9 7945HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Ryzen 9 7945HX rivals Core i9-14900HX.

Feature	Core i7-12700K	Ryzen 9 7945HX
Integrated GPU	Yes	Yes
IGPU Model	Intel UHD Graphics 770	Radeon 610M
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	AMD-V
Target Use	—	Extreme Gaming / Mobile Workstation