Ryzen 5 PRO 7645 vs Xeon E-2478

Ryzen 5 PRO 7645 vs Xeon E-2478 Performance Spectrum

Ryzen 5 PRO 7645

6 / 12

27,565

0.0%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

Xeon E-2478

8 / 16

27,776

+0.8%

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.

Ryzen 5 PRO 7645 vs Xeon E-2478 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 Xeon E-2478: 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

✅Better for gaming: +11.4% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (32 MB vs 24 MB).
✅Costs $339 less on MSRP ($229 MSRP vs $568 MSRP).
✅Delivers 146.2% more PassMark for each dollar spent, at 120.4 vs 48.9 PassMark/$ ($229 MSRP vs $568 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.

Trade-offs

❌Lower PassMark (27,565 vs 27,776).
❌Less compelling for workstation-style loads than Xeon E-2478, which brings 8 cores / 16 threads and 20 PCIe lanes.

Xeon E-2478

2023

Why buy it

✅+0.8% higher PassMark.
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 20 PCIe lanes vs 0.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 PRO 7645 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (24 MB vs 32 MB).
❌Lower PassMark per dollar, at 48.9 vs 120.4 PassMark/$ ($568 MSRP vs $229 MSRP).
❌23.1% higher power demand at 80W vs 65W.

Quick Answers

So, is Ryzen 5 PRO 7645 better than Xeon E-2478?

Not really, because they are built for different jobs. Xeon E-2478 makes more sense for workstation-style multi-core throughput, while Ryzen 5 PRO 7645 is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Xeon E-2478 is the stronger fit. You are getting 0.8% 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 better buy right now. Ryzen 5 PRO 7645 comes in $339 cheaper on MSRP at $229 MSRP versus $568 MSRP, and it still gives you a 11.4% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E-2478 is still stronger for heavier multi-core work with 0.8% better PassMark. It is also 146.2% better value on MSRP (120.4 vs 48.9 PassMark/$), 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 33.3% larger total L3 cache (32 MB vs 24 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 PRO 7645 vs Xeon E-2478 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.

Xeon E-2478

The Xeon E-2478 is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 2.8 GHz, with boost up to 5.2 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 80 Watt. Memory support: DDR5-4800. Passmark benchmark score: 27,776 points. Launch price was $568.

⚡

Processing Power

The Ryzen 5 PRO 7645 packs 6 cores / 12 threads, while the Xeon E-2478 offers 8 cores / 16 threads — the Xeon E-2478 has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 5 PRO 7645 versus 5.2 GHz on the Xeon E-2478 — a 1.9% clock advantage for the Xeon E-2478 (base: 3.8 GHz vs 2.8 GHz). The Ryzen 5 PRO 7645 uses the Raphael (2023−2025) architecture (5 nm), while the Xeon E-2478 uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 5 PRO 7645 scores 27,565 against the Xeon E-2478's 27,776 — a 0.8% lead for the Xeon E-2478. L3 cache: 32 MB (total) on the Ryzen 5 PRO 7645 vs 24 MB (total) on the Xeon E-2478.

Feature	Ryzen 5 PRO 7645	Xeon E-2478
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	5.1 GHz	5.2 GHz+2%
Base Clock	3.8 GHz+36%	2.8 GHz
L3 Cache	32 MB (total)+33%	24 MB (total)
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	5 nm-29%	Intel 7 nm
Architecture	Raphael (2023−2025)	Raptor Lake-S (2023−2024)
PassMark	27,565	27,776

🧠

Memory & Platform

The Ryzen 5 PRO 7645 uses the AM5 socket (PCIe 4.0), while the Xeon E-2478 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Ryzen 5 PRO 7645	Xeon E-2478
Socket	AM5	LGA1700
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	—	DDR5-4800
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	20

🔧

Advanced Features

Virtualization: not specified (Ryzen 5 PRO 7645) / VT-x, VT-d (Xeon E-2478). Primary use case: Xeon E-2478 targets Server.

Feature	Ryzen 5 PRO 7645	Xeon E-2478
Integrated GPU	—	No
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x, VT-d
Target Use	—	Server

💰

Value Analysis

At launch, the Ryzen 5 PRO 7645 was priced at $229, while the Xeon E-2478 came in at $568. On launch pricing ($229 vs $568), Ryzen 5 PRO 7645 was $339 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 5 PRO 7645 delivers 120.4 pts/$ vs 48.9 pts/$ for the Xeon E-2478 — making the Ryzen 5 PRO 7645 the 84.4% better value option.

Feature	Ryzen 5 PRO 7645	Xeon E-2478
MSRP	$229-60%	$568
Performance per Dollar	120.4+146%	48.9
Release Date	2023	2023

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