Ryzen 5 PRO 7645 vs Ryzen 7 7840H

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.

Ryzen 5 PRO 7645 vs Ryzen 7 7840H 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.

Ryzen 5 PRO 7645 vs Ryzen 7 7840H: Pros, Cons & Final Verdict

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

Ryzen 5 PRO 7645

2023

Why buy it

✅+100% larger total L3 cache (32 MB vs 16 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840H across 50 shared CPU benchmark tests.
❌Lower PassMark (27,565 vs 27,832).
❌Launch MSRP is still $229 MSRP, while Ryzen 7 7840H mostly shows up through inconsistent older-market listings.
❌85.7% higher power demand at 65W vs 35W.

Ryzen 7 7840H

2023

Why buy it

✅Better for gaming: +17.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 35W instead of 65W, a 30W reduction.

Trade-offs

❌Smaller total L3 cache (16 MB vs 32 MB).

Quick Answers

So, is Ryzen 7 7840H better than Ryzen 5 PRO 7645?

Yes. Ryzen 7 7840H is the better all-around CPU here. It gives you a 17.8% average FPS lead across 50 shared CPU game tests in our data and 1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7840H is the better pick. According to our tests, it delivers 17.8% 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 7 7840H is the stronger fit. You are getting 1% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 7840H is still the faster CPU overall, but Ryzen 5 PRO 7645 is easier to justify if budget matters more than peak performance. Ryzen 7 7840H comes in at an unclear MSRP at unclear MSRP versus $229 MSRP, and it still gives you a 17.8% average FPS lead across 50 shared CPU game tests in our data. Ryzen 5 PRO 7645 is also 100.0% better value on MSRP (120.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen 5 PRO 7645 makes more sense long term for 2026 and beyond. You are getting 100% larger total L3 cache (32 MB vs 16 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 PRO 7645 vs Ryzen 7 7840H Technical Specifications

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

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.

Ryzen 7 7840H

The Ryzen 7 7840H is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5-5600. Passmark benchmark score: 27,832 points. Launch price was $299.

⚡

Processing Power

The Ryzen 5 PRO 7645 packs 6 cores / 12 threads, while the Ryzen 7 7840H offers 8 cores / 16 threads — the Ryzen 7 7840H has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 5 PRO 7645 versus 5.1 GHz on the Ryzen 7 7840H — identical boost frequencies (base: 3.8 GHz vs 3.8 GHz). The Ryzen 5 PRO 7645 uses the Raphael (2023−2025) architecture (5 nm), while the Ryzen 7 7840H uses Phoenix (2023−2024) (4 nm). In PassMark, the Ryzen 5 PRO 7645 scores 27,565 against the Ryzen 7 7840H's 27,832 — a 1% lead for the Ryzen 7 7840H. L3 cache: 32 MB (total) on the Ryzen 5 PRO 7645 vs 16 MB (total) on the Ryzen 7 7840H.

Feature	Ryzen 5 PRO 7645	Ryzen 7 7840H
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5.1 GHz	5.1 GHz
Base Clock	3.8 GHz	3.8 GHz
L3 Cache	32 MB (total)+100%	16 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm	4 nm-20%
Architecture	Raphael (2023−2025)	Phoenix (2023−2024)
PassMark	27,565	27,832

🧠

Memory & Platform

The Ryzen 5 PRO 7645 uses the AM5 socket (PCIe 4.0), while the Ryzen 7 7840H uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.