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 PRO 7645

2023

Why buy it

✅Costs $220 less on MSRP ($229 MSRP vs $449 MSRP).
✅Delivers 95.0% more PassMark for each dollar spent, at 120.4 vs 61.7 PassMark/$ ($229 MSRP vs $449 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on AM5 with DDR5 support instead of AM4 and DDR4.

Trade-offs

❌Lower PassMark (27,565 vs 27,712).

Ryzen 7 5800X

2020

Why buy it

✅+0.5% higher PassMark.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 61.7 vs 120.4 PassMark/$ ($449 MSRP vs $229 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 PRO 7645 moves to AM5 and DDR5.

Ryzen 5 PRO 7645

2023

Ryzen 7 5800X

2020

Why buy it

✅Costs $220 less on MSRP ($229 MSRP vs $449 MSRP).
✅Delivers 95.0% more PassMark for each dollar spent, at 120.4 vs 61.7 PassMark/$ ($229 MSRP vs $449 MSRP).
✅Draws 65W instead of 105W, a 40W reduction.
✅Newer platform on AM5 with DDR5 support instead of AM4 and DDR4.

Why buy it

✅+0.5% higher PassMark.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (27,565 vs 27,712).

Trade-offs

❌Lower PassMark per dollar, at 61.7 vs 120.4 PassMark/$ ($449 MSRP vs $229 MSRP).
❌61.5% higher power demand at 105W vs 65W.
❌Older platform position on AM4 with DDR4, while Ryzen 5 PRO 7645 moves to AM5 and DDR5.

Quick Answers

So, is Ryzen 5 PRO 7645 better than Ryzen 7 5800X?

It depends on what matters more to you. For gaming, Ryzen 5 PRO 7645 is ahead with a 0.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 5800X pulls ahead with 0.5% better PassMark.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X is the better fit. You are getting 0.5% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 5 PRO 7645 is the smarter buy today. Ryzen 5 PRO 7645 is $220 cheaper on MSRP at $229 MSRP versus $449 MSRP, and it gives you a 0.8% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Ryzen 7 5800X is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 95.0% better value on MSRP (120.4 vs 61.7 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper. That said, if you already own a compatible AM4 + DDR4 setup, Ryzen 7 5800X can still make sense as a platform-matched option because it avoids a motherboard and RAM swap, but on MSRP alone you would want to find it meaningfully cheaper in real-world listings before that path becomes easy to justify.

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 2020) and a healthier platform with AM5 and DDR5 instead of AM4. 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 PRO 7645 Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	Ryzen 5 PRO 7645	Ryzen 7 5800X
1080p
low	246 FPS	206 FPS
medium	228 FPS	178 FPS
high	197 FPS	146 FPS
ultra	171 FPS	110 FPS
1440p
low	217 FPS	170 FPS
medium	182 FPS	142 FPS
high	151 FPS	115 FPS
ultra	133 FPS	88 FPS
4K
low	151 FPS	83 FPS
medium	127 FPS	74 FPS
high	99 FPS	59 FPS
ultra	85 FPS	46 FPS

Open Ryzen 5 PRO 7645 Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 PRO 7645	Ryzen 7 5800X
1080p
low	525 FPS	662 FPS
medium	441 FPS	558 FPS
high	370 FPS	466 FPS
ultra	332 FPS	417 FPS
1440p
low	451 FPS	563 FPS
medium	392 FPS	493 FPS
high	333 FPS	423 FPS
ultra	288 FPS	361 FPS
4K
low	283 FPS	350 FPS
medium	251 FPS	308 FPS
high	234 FPS	288 FPS
ultra	203 FPS	250 FPS

Open Ryzen 5 PRO 7645 Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 PRO 7645	Ryzen 7 5800X
1080p
low	689 FPS	693 FPS
medium	689 FPS	651 FPS
high	689 FPS	570 FPS
ultra	689 FPS	464 FPS
1440p
low	689 FPS	693 FPS
medium	689 FPS	573 FPS
high	689 FPS	498 FPS
ultra	621 FPS	413 FPS
4K
low	539 FPS	484 FPS
medium	471 FPS	410 FPS
high	411 FPS	363 FPS
ultra	341 FPS	302 FPS

Open Ryzen 5 PRO 7645 Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 PRO 7645	Ryzen 7 5800X
1080p
low	689 FPS	693 FPS
medium	689 FPS	693 FPS
high	689 FPS	693 FPS
ultra	689 FPS	693 FPS
1440p
low	689 FPS	693 FPS
medium	689 FPS	693 FPS
high	689 FPS	672 FPS
ultra	645 FPS	593 FPS
4K
low	675 FPS	604 FPS
medium	594 FPS	550 FPS
high	526 FPS	495 FPS
ultra	437 FPS	436 FPS

Open Ryzen 5 PRO 7645 Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 PRO 7645 and Ryzen 7 5800X

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 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

⚡

Processing Power

The Ryzen 5 PRO 7645 packs 6 cores / 12 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 5 PRO 7645 versus 4.7 GHz on the Ryzen 7 5800X — a 8.2% clock advantage for the Ryzen 5 PRO 7645 (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 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 5 PRO 7645 scores 27,565 against the Ryzen 7 5800X's 27,712 — a 0.5% lead for the Ryzen 7 5800X. L3 cache: 32 MB (total) on the Ryzen 5 PRO 7645 vs 32 MB on the Ryzen 7 5800X.

Feature	Ryzen 5 PRO 7645	Ryzen 7 5800X
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5.1 GHz+9%	4.7 GHz
Base Clock	3.8 GHz	3.8 GHz
L3 Cache	32 MB (total)	32 MB
L2 Cache	1 MB (per core)+100%	512K (per core)
Process	5 nm-29%	7 nm, 12 nm
Architecture	Raphael (2023−2025)	Vermeer (Zen 3) (2020−2022)
PassMark	27,565	27,712

🧠

Memory & Platform

The Ryzen 5 PRO 7645 uses the AM5 socket (PCIe 4.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 5 PRO 7645	Ryzen 7 5800X
Socket	AM5	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	24

🔧

Advanced Features

Virtualization: not specified (Ryzen 5 PRO 7645) / AMD-V (Ryzen 7 5800X). Primary use case: Ryzen 7 5800X targets Desktop.

Feature	Ryzen 5 PRO 7645	Ryzen 7 5800X
Integrated GPU	—	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	—	AMD-V
Target Use	—	Desktop

💰

Value Analysis

The Ryzen 5 PRO 7645 launched at $229 MSRP, while the Ryzen 7 5800X debuted at $449. On MSRP ($229 vs $449), the Ryzen 5 PRO 7645 is $220 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 5 PRO 7645 delivers 120.4 pts/$ vs 61.7 pts/$ for the Ryzen 7 5800X — making the Ryzen 5 PRO 7645 the 64.4% better value option.