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 i9-10940X

2019

Why buy it

✅+0.4% higher PassMark.
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (19 MB vs 32 MB).
❌Lower PassMark per dollar, at 35.3 vs 120.4 PassMark/$ ($784 MSRP vs $229 MSRP).
❌153.8% higher power demand at 165W vs 65W.
❌Older platform position on LGA2066 with DDR4, while Ryzen 5 PRO 7645 moves to AM5 and DDR5.

Ryzen 5 PRO 7645

2023

Why buy it

✅+66.2% larger total L3 cache (32 MB vs 19 MB).
✅Costs $555 less on MSRP ($229 MSRP vs $784 MSRP).
✅Delivers 240.9% more PassMark for each dollar spent, at 120.4 vs 35.3 PassMark/$ ($229 MSRP vs $784 MSRP).
✅Draws 65W instead of 165W, a 100W reduction.
✅Newer platform on AM5 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Lower PassMark (27,565 vs 27,684).

Core i9-10940X

2019

Ryzen 5 PRO 7645

2023

Why buy it

✅+0.4% higher PassMark.
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.

Why buy it

✅+66.2% larger total L3 cache (32 MB vs 19 MB).
✅Costs $555 less on MSRP ($229 MSRP vs $784 MSRP).
✅Delivers 240.9% more PassMark for each dollar spent, at 120.4 vs 35.3 PassMark/$ ($229 MSRP vs $784 MSRP).
✅Draws 65W instead of 165W, a 100W reduction.
✅Newer platform on AM5 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Smaller total L3 cache (19 MB vs 32 MB).
❌Lower PassMark per dollar, at 35.3 vs 120.4 PassMark/$ ($784 MSRP vs $229 MSRP).
❌153.8% higher power demand at 165W vs 65W.
❌Older platform position on LGA2066 with DDR4, while Ryzen 5 PRO 7645 moves to AM5 and DDR5.

Trade-offs

❌Lower PassMark (27,565 vs 27,684).

Quick Answers

So, is Ryzen 5 PRO 7645 better than Core i9-10940X?

It depends on what matters more to you. For gaming, Ryzen 5 PRO 7645 is ahead with a 2.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i9-10940X pulls ahead with 0.4% better PassMark. Ryzen 5 PRO 7645 also has the bigger cache pool with 66.2% larger total L3 cache (32 MB vs 19 MB).

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

For streaming, content creation, and heavier multitasking, Core i9-10940X is the better fit. You are getting 0.4% better PassMark, backed by 14 cores and 28 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 $555 cheaper on MSRP at $229 MSRP versus $784 MSRP, and it gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Core i9-10940X is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 240.9% better value on MSRP (120.4 vs 35.3 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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 2019), a healthier platform with AM5 and DDR5 instead of LGA2066, and 66.2% larger total L3 cache (32 MB vs 19 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 i9-10940X Benchmark Check

Ryzen 5 PRO 7645 Benchmark Check

Path of Exile 2

Preset	Core i9-10940X	Ryzen 5 PRO 7645
1080p
low	279 FPS	246 FPS
medium	249 FPS	228 FPS
high	206 FPS	197 FPS
ultra	174 FPS	171 FPS
1440p
low	233 FPS	217 FPS
medium	189 FPS	182 FPS
high	154 FPS	151 FPS
ultra	134 FPS	133 FPS
4K
low	164 FPS	151 FPS
medium	134 FPS	127 FPS
high	105 FPS	99 FPS
ultra	90 FPS	85 FPS

Open Core i9-10940X Open Ryzen 5 PRO 7645

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i9-10940X	Ryzen 5 PRO 7645
1080p
low	550 FPS	525 FPS
medium	457 FPS	441 FPS
high	379 FPS	370 FPS
ultra	342 FPS	332 FPS
1440p
low	456 FPS	451 FPS
medium	394 FPS	392 FPS
high	332 FPS	333 FPS
ultra	287 FPS	288 FPS
4K
low	283 FPS	283 FPS
medium	246 FPS	251 FPS
high	226 FPS	234 FPS
ultra	197 FPS	203 FPS

Open Core i9-10940X Open Ryzen 5 PRO 7645

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i9-10940X	Ryzen 5 PRO 7645
1080p
low	692 FPS	689 FPS
medium	692 FPS	689 FPS
high	692 FPS	689 FPS
ultra	692 FPS	689 FPS
1440p
low	692 FPS	689 FPS
medium	692 FPS	689 FPS
high	692 FPS	689 FPS
ultra	656 FPS	621 FPS
4K
low	595 FPS	539 FPS
medium	500 FPS	471 FPS
high	444 FPS	411 FPS
ultra	373 FPS	341 FPS

Open Core i9-10940X Open Ryzen 5 PRO 7645

League of Legends

League of Legends

Valorant

Preset	Core i9-10940X	Ryzen 5 PRO 7645
1080p
low	692 FPS	689 FPS
medium	692 FPS	689 FPS
high	692 FPS	689 FPS
ultra	692 FPS	689 FPS
1440p
low	692 FPS	689 FPS
medium	692 FPS	689 FPS
high	639 FPS	689 FPS
ultra	560 FPS	645 FPS
4K
low	580 FPS	675 FPS
medium	516 FPS	594 FPS
high	464 FPS	526 FPS
ultra	408 FPS	437 FPS

Open Core i9-10940X Open Ryzen 5 PRO 7645

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i9-10940X and Ryzen 5 PRO 7645

Core i9-10940X

The Core i9-10940X is manufactured by Intel. It was released in 19 October 2019 (6 years ago). It is based on the Cascade Lake-X (2019) architecture. It features 14 cores and 28 threads. Base frequency is 3.3 GHz, with boost up to 4.8 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2933. Passmark benchmark score: 27,684 points. Launch price was $299.

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 i9-10940X packs 14 cores / 28 threads, while the Ryzen 5 PRO 7645 offers 6 cores / 12 threads — the Core i9-10940X has 8 more cores. Boost clocks reach 4.8 GHz on the Core i9-10940X versus 5.1 GHz on the Ryzen 5 PRO 7645 — a 6.1% clock advantage for the Ryzen 5 PRO 7645 (base: 3.3 GHz vs 3.8 GHz). The Core i9-10940X uses the Cascade Lake-X (2019) architecture (14 nm), while the Ryzen 5 PRO 7645 uses Raphael (2023−2025) (5 nm). In PassMark, the Core i9-10940X scores 27,684 against the Ryzen 5 PRO 7645's 27,565 — a 0.4% lead for the Core i9-10940X. L3 cache: 19.25 MB (total) on the Core i9-10940X vs 32 MB (total) on the Ryzen 5 PRO 7645.

Feature	Core i9-10940X	Ryzen 5 PRO 7645
Cores / Threads	14 / 28+133%	6 / 12
Boost Clock	4.8 GHz	5.1 GHz+6%
Base Clock	3.3 GHz	3.8 GHz+15%
L3 Cache	19.25 MB (total)	32 MB (total)+66%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	14 nm	5 nm-64%
Architecture	Cascade Lake-X (2019)	Raphael (2023−2025)
PassMark	27,684	27,565
Cinebench R23 Multi	19,000	—
Geekbench 6 Single	1,450	—
Geekbench 6 Multi	11,000	—

🧠

Memory & Platform

The Core i9-10940X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 5 PRO 7645 uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-10940X	Ryzen 5 PRO 7645
Socket	LGA2066	AM5
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2933	—
Max RAM Capacity	256 GB	—
RAM Channels	4	—
ECC Support	No	—
PCIe Lanes	48	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i9-10940X) / not specified (Ryzen 5 PRO 7645). Primary use case: Core i9-10940X targets High-End Desktop.

Feature	Core i9-10940X	Ryzen 5 PRO 7645
Integrated GPU	No	—
IGPU Model	None	—
Unlocked	Yes	—
AVX-512	Yes	—
Virtualization	VT-x, VT-d	—
Target Use	High-End Desktop	—

💰

Value Analysis

The Core i9-10940X launched at $784 MSRP, while the Ryzen 5 PRO 7645 debuted at $229. On MSRP ($784 vs $229), the Ryzen 5 PRO 7645 is $555 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-10940X delivers 35.3 pts/$ vs 120.4 pts/$ for the Ryzen 5 PRO 7645 — making the Ryzen 5 PRO 7645 the 109.3% better value option.