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.

Ryzen 5 7645HX

2023

Why buy it

✅Better for gaming: +20.1% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FL1 with DDR5 support instead of AM4 and DDR4.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 610M, while Ryzen 7 5700X3D needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (32 MB vs 96 MB).

Ryzen 7 5700X3D

2024

Why buy it

✅+200% larger total L3 cache (96 MB vs 32 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 7645HX across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (13,400 vs 13,985).
❌Launch MSRP is still $249 MSRP, while Ryzen 5 7645HX mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 105W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 7645HX moves to FL1 and DDR5.

Ryzen 5 7645HX

2023

Ryzen 7 5700X3D

2024

Why buy it

✅Better for gaming: +20.1% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 105W, a 60W reduction.
✅Newer platform on FL1 with DDR5 support instead of AM4 and DDR4.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon 610M, while Ryzen 7 5700X3D needs a discrete GPU.

Why buy it

✅+200% larger total L3 cache (96 MB vs 32 MB).

Trade-offs

❌Smaller total L3 cache (32 MB vs 96 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 7645HX across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (13,400 vs 13,985).
❌Launch MSRP is still $249 MSRP, while Ryzen 5 7645HX mostly shows up through inconsistent older-market listings.
❌133.3% higher power demand at 105W vs 45W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 7645HX moves to FL1 and DDR5.

Quick Answers

So, is Ryzen 5 7645HX better than Ryzen 7 5700X3D?

Yes. Ryzen 5 7645HX is the better overall CPU here. You are getting a 20.1% average FPS lead across 50 shared CPU game tests in our data, 4.4% better Cinebench R23 multi-core, 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 5 7645HX is the better pick here. According to our tests, it delivers 20.1% 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 5 7645HX is the better fit. You are getting 4.4% better Cinebench R23 multi-core, backed by 6 cores and 12 threads.

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

Ryzen 5 7645HX is still the faster CPU overall, but Ryzen 7 5700X3D makes more sense if price matters more than absolute performance. Ryzen 5 7645HX is at an unclear MSRP at unclear MSRP versus $249 MSRP, and it gives you a 20.1% average FPS lead across 50 shared CPU game tests in our data. Ryzen 7 5700X3D is also 100.0% better value on MSRP (105.6 vs 0.0 PassMark/$), 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 5 7645HX is the more future-proof choice for 2026 and beyond. You are getting a healthier platform with FL1 and DDR5 instead of AM4 and more multi-core headroom with 6 cores / 12 threads instead of 8/16. 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.

Ryzen 5 7645HX Benchmark Check

Ryzen 7 5700X3D Benchmark Check

Path of Exile 2

Preset	Ryzen 5 7645HX	Ryzen 7 5700X3D
1080p
low	272 FPS	161 FPS
medium	249 FPS	132 FPS
high	212 FPS	113 FPS
ultra	182 FPS	91 FPS
1440p
low	229 FPS	145 FPS
medium	190 FPS	116 FPS
high	155 FPS	93 FPS
ultra	137 FPS	75 FPS
4K
low	160 FPS	68 FPS
medium	133 FPS	58 FPS
high	103 FPS	46 FPS
ultra	89 FPS	38 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5700X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 7645HX	Ryzen 7 5700X3D
1080p
low	638 FPS	510 FPS
medium	515 FPS	450 FPS
high	430 FPS	349 FPS
ultra	385 FPS	297 FPS
1440p
low	546 FPS	428 FPS
medium	459 FPS	385 FPS
high	390 FPS	309 FPS
ultra	335 FPS	249 FPS
4K
low	347 FPS	267 FPS
medium	294 FPS	243 FPS
high	273 FPS	210 FPS
ultra	236 FPS	184 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5700X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 7645HX	Ryzen 7 5700X3D
1080p
low	652 FPS	658 FPS
medium	652 FPS	598 FPS
high	652 FPS	544 FPS
ultra	590 FPS	480 FPS
1440p
low	652 FPS	537 FPS
medium	598 FPS	455 FPS
high	515 FPS	407 FPS
ultra	442 FPS	354 FPS
4K
low	513 FPS	383 FPS
medium	433 FPS	309 FPS
high	374 FPS	273 FPS
ultra	306 FPS	220 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5700X3D

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 7645HX	Ryzen 7 5700X3D
1080p
low	652 FPS	658 FPS
medium	652 FPS	658 FPS
high	652 FPS	658 FPS
ultra	652 FPS	604 FPS
1440p
low	652 FPS	658 FPS
medium	652 FPS	607 FPS
high	652 FPS	520 FPS
ultra	570 FPS	450 FPS
4K
low	586 FPS	499 FPS
medium	525 FPS	449 FPS
high	474 FPS	395 FPS
ultra	405 FPS	338 FPS

Open Ryzen 5 7645HX Open Ryzen 7 5700X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 7645HX and Ryzen 7 5700X3D

Ryzen 5 7645HX

The Ryzen 5 7645HX is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Dragon Range (Zen4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4 GHz, with boost up to 5 GHz. L3 cache: 32 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 45 Watt. Memory support: DDR5-5200. Passmark benchmark score: 26,097 points. Launch price was $299.

Ryzen 7 5700X3D

The Ryzen 7 5700X3D is manufactured by AMD. It was released in 8 January 2024 (1 year ago). It is based on the Vermeer (2020−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3 GHz, with boost up to 4.1 GHz. L3 cache: 96 MB (total). L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 26,303 points. Launch price was $249.

⚡

Processing Power

The Ryzen 5 7645HX packs 6 cores / 12 threads, while the Ryzen 7 5700X3D offers 8 cores / 16 threads — the Ryzen 7 5700X3D has 2 more cores. Boost clocks reach 5 GHz on the Ryzen 5 7645HX versus 4.1 GHz on the Ryzen 7 5700X3D — a 19.8% clock advantage for the Ryzen 5 7645HX (base: 4 GHz vs 3 GHz). The Ryzen 5 7645HX uses the Dragon Range (Zen4) (2023) architecture (5 nm), while the Ryzen 7 5700X3D uses Vermeer (2020−2025) (7 nm). In PassMark, the Ryzen 5 7645HX scores 26,097 against the Ryzen 7 5700X3D's 26,303 — a 0.8% lead for the Ryzen 7 5700X3D. Cinebench R23 multi-core: 13,985 vs 13,400 (4.3% advantage for the Ryzen 5 7645HX). Geekbench 6 single-core — the metric most relevant to gaming — records 2,588 vs 1,900, a 30.7% lead for the Ryzen 5 7645HX that directly translates to higher frame rates. Multi-core Geekbench: 11,717 vs 10,500 (11% advantage for the Ryzen 5 7645HX). L3 cache: 32 MB (total) on the Ryzen 5 7645HX vs 96 MB (total) on the Ryzen 7 5700X3D.

Feature	Ryzen 5 7645HX	Ryzen 7 5700X3D
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5 GHz+22%	4.1 GHz
Base Clock	4 GHz+33%	3 GHz
L3 Cache	32 MB (total)	96 MB (total)+200%
L2 Cache	1 MB (per core)+100%	512 kB (per core)
Process	5 nm-29%	7 nm
Architecture	Dragon Range (Zen4) (2023)	Vermeer (2020−2025)
PassMark	26,097	26,303
Cinebench R23 Multi	13,985+4%	13,400
Geekbench 6 Single	2,588+36%	1,900
Geekbench 6 Multi	11,717+12%	10,500

🧠

Memory & Platform

The Ryzen 5 7645HX uses the FL1 socket (PCIe 5.0), while the Ryzen 7 5700X3D uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 5 7645HX versus DDR4-3200 on the Ryzen 7 5700X3D — the Ryzen 5 7645HX supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5700X3D supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 5 7645HX) vs 24 (Ryzen 7 5700X3D) — the Ryzen 5 7645HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Ryzen 5 7645HX) and X570,X470,B550,B450,A520 (Ryzen 7 5700X3D).

Feature	Ryzen 5 7645HX	Ryzen 7 5700X3D
Socket	FL1	AM4
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5200+25%	DDR4-3200
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	28+17%	24

🔧

Advanced Features

Neither processor supports overclocking. Only the Ryzen 5 7645HX supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (SVM) (Ryzen 5 7645HX) vs AMD-V (Ryzen 7 5700X3D). The Ryzen 5 7645HX includes integrated graphics (Radeon 610M), while the Ryzen 7 5700X3D requires a dedicated GPU. Primary use case: Ryzen 5 7645HX targets Gaming, Ryzen 7 5700X3D targets Gaming. Direct competitor: Ryzen 5 7645HX rivals Core i5-13500HX; Ryzen 7 5700X3D rivals Intel Core i5-14600K.