Core i9-10940X vs Ryzen 5 PRO 7645

Core i9-10940X vs Ryzen 5 PRO 7645 Performance Spectrum

Core i9-10940X

14 / 28

27,684

+0.4%

27,565

0.0%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

About PassMark

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.

Core i9-10940X vs Ryzen 5 PRO 7645 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.

Core i9-10940X vs Ryzen 5 PRO 7645: Pros, Cons & Final Verdict

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

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).

Quick Answers

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

It depends on what you want from the system. 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 stronger 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 better buy right now. Ryzen 5 PRO 7645 comes in $555 cheaper on MSRP at $229 MSRP versus $784 MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i9-10940X is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 240.9% better value on MSRP (120.4 vs 35.3 PassMark/$), so you are getting the faster CPU without taking a value hit 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 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 gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-10940X vs Ryzen 5 PRO 7645 Technical Specifications

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

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

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

Feature	Core i9-10940X	Ryzen 5 PRO 7645
MSRP	$784	$229-71%
Performance per Dollar	35.3	120.4+241%
Release Date	2019	2023

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