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 7945HX3D across 50 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 57,803).
❌Launch MSRP is still $409 MSRP, while Ryzen 9 7945HX3D mostly shows up through inconsistent older-market listings.
❌127.3% higher power demand at 125W vs 55W.

Ryzen 9 7945HX3D

2023

Why buy it

✅Better for gaming: +4.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 125W, a 70W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

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

Core i7-12700K

2021

Ryzen 9 7945HX3D

2023

Why buy it

✅Better for gaming: +4.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 125W, a 70W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX3D across 50 shared CPU benchmark tests.
❌Lower PassMark (34,347 vs 57,803).
❌Launch MSRP is still $409 MSRP, while Ryzen 9 7945HX3D 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 7945HX3D better than Core i7-12700K?

Yes. Ryzen 9 7945HX3D is the better overall CPU here. You are getting a 4.2% average FPS lead across 50 shared CPU game tests in our data, 68.3% 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 7945HX3D is the better pick here. According to our tests, it delivers 4.2% more average FPS across 50 shared CPU game tests. It also has a big cache advantage at 128 MB vs 25 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7945HX3D is the better fit. You are getting 68.3% better PassMark, backed by 16 cores and 32 threads. It also carries the larger cache pool with 412% larger total L3 cache (128 MB vs 25 MB).

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

Ryzen 9 7945HX3D is still the faster CPU overall, but Core i7-12700K makes more sense if price matters more than absolute performance. Ryzen 9 7945HX3D is at an unclear MSRP at unclear MSRP versus $409 MSRP, and it gives you a 4.2% average FPS lead across 50 shared CPU game tests in our data. Core i7-12700K is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), 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 7945HX3D is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), 3D V-Cache and a much larger 128 MB L3 cache instead of 25 MB, and more multi-core headroom with 16 cores / 32 threads instead of 12/20. That extra cache should hold up really well in CPU-limited games and high-refresh builds.

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 7945HX3D Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Ryzen 9 7945HX3D
1080p
low	314 FPS	279 FPS
medium	295 FPS	257 FPS
high	246 FPS	210 FPS
ultra	193 FPS	178 FPS
1440p
low	269 FPS	263 FPS
medium	225 FPS	220 FPS
high	182 FPS	169 FPS
ultra	145 FPS	149 FPS
4K
low	170 FPS	183 FPS
medium	142 FPS	152 FPS
high	109 FPS	116 FPS
ultra	96 FPS	103 FPS

Open Core i7-12700K Open Ryzen 9 7945HX3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Ryzen 9 7945HX3D
1080p
low	630 FPS	673 FPS
medium	533 FPS	580 FPS
high	450 FPS	432 FPS
ultra	410 FPS	363 FPS
1440p
low	536 FPS	559 FPS
medium	475 FPS	499 FPS
high	403 FPS	385 FPS
ultra	349 FPS	301 FPS
4K
low	312 FPS	314 FPS
medium	280 FPS	284 FPS
high	266 FPS	250 FPS
ultra	234 FPS	211 FPS

Open Core i7-12700K Open Ryzen 9 7945HX3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Ryzen 9 7945HX3D
1080p
low	797 FPS	1025 FPS
medium	633 FPS	1077 FPS
high	556 FPS	1022 FPS
ultra	472 FPS	875 FPS
1440p
low	704 FPS	884 FPS
medium	565 FPS	805 FPS
high	490 FPS	740 FPS
ultra	422 FPS	647 FPS
4K
low	510 FPS	539 FPS
medium	425 FPS	464 FPS
high	381 FPS	418 FPS
ultra	321 FPS	355 FPS

Open Core i7-12700K Open Ryzen 9 7945HX3D

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Ryzen 9 7945HX3D
1080p
low	859 FPS	1051 FPS
medium	802 FPS	951 FPS
high	699 FPS	833 FPS
ultra	628 FPS	745 FPS
1440p
low	760 FPS	831 FPS
medium	678 FPS	736 FPS
high	590 FPS	645 FPS
ultra	519 FPS	555 FPS
4K
low	535 FPS	607 FPS
medium	488 FPS	544 FPS
high	437 FPS	482 FPS
ultra	384 FPS	416 FPS

Open Core i7-12700K Open Ryzen 9 7945HX3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 9 7945HX3D

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 7945HX3D

The Ryzen 9 7945HX3D is manufactured by AMD. It was released in 2023-07-27. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5-5200. Passmark benchmark score: 57,803 points. Launch price was $800.

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Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 9 7945HX3D offers 16 cores / 32 threads — the Ryzen 9 7945HX3D has 4 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 5.4 GHz on the Ryzen 9 7945HX3D — a 7.7% clock advantage for the Ryzen 9 7945HX3D (base: 3.6 GHz vs 2.3 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 9 7945HX3D uses Dragon Range-HX (Zen 4) (2023−2024) (5 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 9 7945HX3D's 57,803 — a 50.9% lead for the Ryzen 9 7945HX3D. L3 cache: 25 MB (total) on the Core i7-12700K vs 128 MB (total) on the Ryzen 9 7945HX3D.

Feature	Core i7-12700K	Ryzen 9 7945HX3D
Cores / Threads	12 / 20	16 / 32+33%
Boost Clock	5 GHz	5.4 GHz+8%
Base Clock	3.6 GHz+57%	2.3 GHz
L3 Cache	25 MB (total)	128 MB (total)+412%
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	10 nm	5 nm-50%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	34,347	57,803+68%

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Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 7945HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Core i7-12700K versus 5200 on the Ryzen 9 7945HX3D — the Ryzen 9 7945HX3D supports 8% 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 28 (Ryzen 9 7945HX3D) — the Ryzen 9 7945HX3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z690,B660 (Core i7-12700K) and FL1 (Ryzen 9 7945HX3D).

Feature	Core i7-12700K	Ryzen 9 7945HX3D
Socket	LGA1700	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	4800	5200+8%
Max RAM Capacity	128	128
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 7945HX3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i7-12700K) vs VT-x, VT-d, AMD-V (Ryzen 9 7945HX3D). Both include integrated graphics — Intel UHD Graphics 770 (Core i7-12700K) and AMD Radeon 610M (Ryzen 9 7945HX3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Ryzen 9 7945HX3D rivals Core Ultra 9 285HX.

Feature	Core i7-12700K	Ryzen 9 7945HX3D
Integrated GPU	Yes	Yes
IGPU Model	Intel UHD Graphics 770	AMD Radeon 610M
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d, AMD-V

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Ryzen 9 7945HX3D debuted at $0. On MSRP ($409 vs $0), the Ryzen 9 7945HX3D is $409 cheaper.