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

✅Better for gaming: +7.4% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 5 PRO 7645 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (25 MB vs 32 MB).
❌Lower PassMark per dollar, at 84.0 vs 120.4 PassMark/$ ($409 MSRP vs $229 MSRP).
❌92.3% higher power demand at 125W vs 65W.

Ryzen 5 PRO 7645

2023

Why buy it

✅+28% larger total L3 cache (32 MB vs 25 MB).
✅Costs $180 less on MSRP ($229 MSRP vs $409 MSRP).
✅Delivers 43.3% more PassMark for each dollar spent, at 120.4 vs 84.0 PassMark/$ ($229 MSRP vs $409 MSRP).
✅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.
❌Lower PassMark (27,565 vs 34,347).
❌No integrated graphics, while Core i7-12700K can still boot and troubleshoot without a discrete GPU.

Core i7-12700K

2021

Ryzen 5 PRO 7645

2023

Why buy it

✅Better for gaming: +7.4% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Ryzen 5 PRO 7645 needs a discrete GPU.

Why buy it

✅+28% larger total L3 cache (32 MB vs 25 MB).
✅Costs $180 less on MSRP ($229 MSRP vs $409 MSRP).
✅Delivers 43.3% more PassMark for each dollar spent, at 120.4 vs 84.0 PassMark/$ ($229 MSRP vs $409 MSRP).
✅Draws 65W instead of 125W, a 60W reduction.

Trade-offs

❌Smaller total L3 cache (25 MB vs 32 MB).
❌Lower PassMark per dollar, at 84.0 vs 120.4 PassMark/$ ($409 MSRP vs $229 MSRP).
❌92.3% higher power demand at 125W vs 65W.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-12700K across 50 shared CPU benchmark tests.
❌Lower PassMark (27,565 vs 34,347).
❌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 5 PRO 7645?

Yes. Core i7-12700K is the better overall CPU here. You are getting a 7.4% average FPS lead across 50 shared CPU game tests in our data and 24.6% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i7-12700K is the better pick here. According to our tests, it delivers 7.4% 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 i7-12700K is the better fit. You are getting 24.6% better PassMark, backed by 12 cores and 20 threads.

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

Core i7-12700K is still the faster CPU overall, but Ryzen 5 PRO 7645 makes more sense if price matters more than absolute performance. Core i7-12700K is 78.6% more expensive on MSRP at $409 MSRP versus $229 MSRP, and it gives you a 7.4% average FPS lead across 50 shared CPU game tests in our data. Ryzen 5 PRO 7645 is also 43.3% better value on MSRP (120.4 vs 84.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper. That said, if you already own a compatible AM5 + DDR5 setup, Ryzen 5 PRO 7645 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?

Ryzen 5 PRO 7645 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021) and 28% larger total L3 cache (32 MB vs 25 MB). 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 5 PRO 7645 Benchmark Check

Path of Exile 2

Preset	Core i7-12700K	Ryzen 5 PRO 7645
1080p
low	314 FPS	246 FPS
medium	295 FPS	228 FPS
high	246 FPS	197 FPS
ultra	193 FPS	171 FPS
1440p
low	269 FPS	217 FPS
medium	225 FPS	182 FPS
high	182 FPS	151 FPS
ultra	145 FPS	133 FPS
4K
low	170 FPS	151 FPS
medium	142 FPS	127 FPS
high	109 FPS	99 FPS
ultra	96 FPS	85 FPS

Open Core i7-12700K Open Ryzen 5 PRO 7645

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-12700K	Ryzen 5 PRO 7645
1080p
low	630 FPS	525 FPS
medium	533 FPS	441 FPS
high	450 FPS	370 FPS
ultra	410 FPS	332 FPS
1440p
low	536 FPS	451 FPS
medium	475 FPS	392 FPS
high	403 FPS	333 FPS
ultra	349 FPS	288 FPS
4K
low	312 FPS	283 FPS
medium	280 FPS	251 FPS
high	266 FPS	234 FPS
ultra	234 FPS	203 FPS

Open Core i7-12700K Open Ryzen 5 PRO 7645

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-12700K	Ryzen 5 PRO 7645
1080p
low	797 FPS	689 FPS
medium	633 FPS	689 FPS
high	556 FPS	689 FPS
ultra	472 FPS	689 FPS
1440p
low	704 FPS	689 FPS
medium	565 FPS	689 FPS
high	490 FPS	689 FPS
ultra	422 FPS	621 FPS
4K
low	510 FPS	539 FPS
medium	425 FPS	471 FPS
high	381 FPS	411 FPS
ultra	321 FPS	341 FPS

Open Core i7-12700K Open Ryzen 5 PRO 7645

League of Legends

League of Legends

Valorant

Preset	Core i7-12700K	Ryzen 5 PRO 7645
1080p
low	859 FPS	689 FPS
medium	802 FPS	689 FPS
high	699 FPS	689 FPS
ultra	628 FPS	689 FPS
1440p
low	760 FPS	689 FPS
medium	678 FPS	689 FPS
high	590 FPS	689 FPS
ultra	519 FPS	645 FPS
4K
low	535 FPS	675 FPS
medium	488 FPS	594 FPS
high	437 FPS	526 FPS
ultra	384 FPS	437 FPS

Open Core i7-12700K Open Ryzen 5 PRO 7645

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-12700K and Ryzen 5 PRO 7645

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 5 PRO 7645

The Ryzen 5 PRO 7645 is manufactured by AMD. It was released in 13 June 2023 (2 years ago). It is based on the Raphael (2023−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 27,565 points. Launch price was $299.

⚡

Processing Power

The Core i7-12700K packs 12 cores / 20 threads, while the Ryzen 5 PRO 7645 offers 6 cores / 12 threads — the Core i7-12700K has 6 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 5.1 GHz on the Ryzen 5 PRO 7645 — a 2% clock advantage for the Ryzen 5 PRO 7645 (base: 3.6 GHz vs 3.8 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Ryzen 5 PRO 7645 uses Raphael (2023−2025) (5 nm). In PassMark, the Core i7-12700K scores 34,347 against the Ryzen 5 PRO 7645's 27,565 — a 21.9% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 32 MB (total) on the Ryzen 5 PRO 7645.

Feature	Core i7-12700K	Ryzen 5 PRO 7645
Cores / Threads	12 / 20+100%	6 / 12
Boost Clock	5 GHz	5.1 GHz+2%
Base Clock	3.6 GHz	3.8 GHz+6%
L3 Cache	25 MB (total)	32 MB (total)+28%
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)	Raphael (2023−2025)
PassMark	34,347+25%	27,565

🧠

Memory & Platform

The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Ryzen 5 PRO 7645 uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i7-12700K	Ryzen 5 PRO 7645
Socket	LGA1700	AM5
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	4800	—
Max RAM Capacity	128	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i7-12700K) / not specified (Ryzen 5 PRO 7645). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Ryzen 5 PRO 7645 requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.

Feature	Core i7-12700K	Ryzen 5 PRO 7645
Integrated GPU	Yes	—
IGPU Model	Intel UHD Graphics 770	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—

💰

Value Analysis

The Core i7-12700K launched at $409 MSRP, while the Ryzen 5 PRO 7645 debuted at $229. On MSRP ($409 vs $229), the Ryzen 5 PRO 7645 is $180 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-12700K delivers 84.0 pts/$ vs 120.4 pts/$ for the Ryzen 5 PRO 7645 — making the Ryzen 5 PRO 7645 the 35.6% better value option.