Core i7-12700K vs Ryzen 9 PRO 5945

Core i7-12700K vs Ryzen 9 PRO 5945 Performance Spectrum

Core i7-12700K

12 / 20

34,347

0.0%

34,549

+0.6%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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 i7-12700K vs Ryzen 9 PRO 5945 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 i7-12700K vs Ryzen 9 PRO 5945: Pros, Cons & Final Verdict

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

Core i7-12700K

2021

Why buy it

✅Better for gaming: +9.1% higher average FPS across 50 shared CPU benchmark tests.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 9 PRO 5945 needs a discrete GPU.

Trade-offs

❌Lower PassMark (34,347 vs 34,549).
❌Smaller total L3 cache (25 MB vs 64 MB).
❌Launch MSRP is still $409 MSRP, while Ryzen 9 PRO 5945 mostly shows up through inconsistent older-market listings.
❌92.3% higher power demand at 125W vs 65W.

Ryzen 9 PRO 5945

2022

Why buy it

✅+0.6% higher PassMark.
✅+156% larger total L3 cache (64 MB vs 25 MB).
✅Draws 65W instead of 125W, a 60W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌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 Core i7-12700K better than Ryzen 9 PRO 5945?

It depends on what you want from the system. For gaming, Core i7-12700K is ahead with a 9.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 PRO 5945 pulls ahead with 0.6% better PassMark. Ryzen 9 PRO 5945 also has the bigger cache pool with 156% larger total L3 cache (64 MB vs 25 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 9 PRO 5945 is the stronger fit. You are getting 0.6% better PassMark, backed by 12 cores and 24 threads. It also has 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?

Core i7-12700K is the better buy right now. Core i7-12700K comes in at an unclear MSRP at $409 MSRP versus unclear MSRP, and it still gives you a 9.1% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Ryzen 9 PRO 5945 is still stronger for heavier multi-core work with 0.6% better PassMark. It is also 100.0% better value on MSRP (84.0 vs 0.0 PassMark/$), 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 PRO 5945 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 makes more sense long term for 2026 and beyond. You are getting a healthier platform with LGA1700 and DDR5 instead of AM4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i7-12700K vs Ryzen 9 PRO 5945 Technical Specifications

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

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 PRO 5945

The Ryzen 9 PRO 5945 is manufactured by AMD. It was released in 4 April 2022 (3 years ago). It is based on the Vermeer (2020−2025) architecture. It features 12 cores and 24 threads. Base frequency is 3 GHz, with boost up to 4.7 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 34,549 points. Launch price was $499.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, matching the Ryzen 9 PRO 5945's 12 cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 4.7 GHz on the Ryzen 9 PRO 5945 — a 6.2% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 9 PRO 5945 uses Vermeer (2020−2025) (7 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 9 PRO 5945's 34,549 — a 0.6% lead for the Ryzen 9 PRO 5945. L3 cache: 25 MB (total) on the Core i7-12700K vs 64 MB on the Ryzen 9 PRO 5945.

Feature	Core i7-12700K	Ryzen 9 PRO 5945
Cores / Threads	12 / 20	12 / 24
Boost Clock	5 GHz+6%	4.7 GHz
Base Clock	3.6 GHz+20%	3 GHz
L3 Cache	25 MB (total)	64 MB+156%
L2 Cache	1.25 MB (per core)+150%	512 kB (per core)
Process	10 nm	7 nm-30%
Architecture	Alder Lake, Golden Cove, Gracemont (2021)	Vermeer (2020−2025)
PassMark	34,347	34,549
Cinebench R23 Multi	—	23,200
Geekbench 6 Single	—	2,175
Geekbench 6 Multi	—	12,500

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 PRO 5945 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 PRO 5945 — the Core i7-12700K 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. Both provide 20 PCIe lanes. Chipset compatibility: Z690,B660 (Core i7-12700K) and X570,B550,A520,X470,B450 (Ryzen 9 PRO 5945).

Feature	Core i7-12700K	Ryzen 9 PRO 5945
Socket	LGA1700	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	4800+50%	DDR4-3200
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	20

🔧

Advanced Features

Only the Core i7-12700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i7-12700K) vs AMD-V (SVM) (Ryzen 9 PRO 5945). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Ryzen 9 PRO 5945 requires a dedicated GPU. Primary use case: Ryzen 9 PRO 5945 targets High-end Gaming. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X; Ryzen 9 PRO 5945 rivals Core i9-12900.