Ryzen 5 PRO 7645 vs Xeon E-2478

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

✅Better for gaming: +15.0% higher average FPS across 4 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 4 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.

Ryzen 5 PRO 7645

2023

Xeon E-2478

2023

Why buy it

✅Better for gaming: +15.0% higher average FPS across 4 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.

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

❌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.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 PRO 7645 across 4 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 in a simple one-size-fits-all way. Xeon E-2478 makes more sense for workstation-style multi-core throughput, while Ryzen 5 PRO 7645 is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Xeon E-2478 is the better 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 smarter buy today. Ryzen 5 PRO 7645 is $339 cheaper on MSRP at $229 MSRP versus $568 MSRP, and it gives you a 15.0% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that Xeon E-2478 is still stronger for heavier multi-core work with 0.8% better PassMark. It is also 146.2% better value on MSRP (120.4 vs 48.9 PassMark/$), so 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 33.3% larger total L3 cache (32 MB vs 24 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.

Ryzen 5 PRO 7645 Benchmark Check

Xeon E-2478 Benchmark Check

Path of Exile 2

Preset	Ryzen 5 PRO 7645	Xeon E-2478
1080p
low	246 FPS	257 FPS
medium	228 FPS	246 FPS
high	197 FPS	205 FPS
ultra	171 FPS	176 FPS
1440p
low	217 FPS	222 FPS
medium	182 FPS	190 FPS
high	151 FPS	152 FPS
ultra	133 FPS	133 FPS
4K
low	151 FPS	153 FPS
medium	127 FPS	130 FPS
high	99 FPS	99 FPS
ultra	85 FPS	88 FPS

Open Ryzen 5 PRO 7645 Open Xeon E-2478

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 5 PRO 7645	Xeon E-2478
1080p
low	525 FPS	616 FPS
medium	441 FPS	522 FPS
high	370 FPS	443 FPS
ultra	332 FPS	404 FPS
1440p
low	451 FPS	533 FPS
medium	392 FPS	467 FPS
high	333 FPS	398 FPS
ultra	288 FPS	342 FPS
4K
low	283 FPS	313 FPS
medium	251 FPS	280 FPS
high	234 FPS	267 FPS
ultra	203 FPS	232 FPS

Open Ryzen 5 PRO 7645 Open Xeon E-2478

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 5 PRO 7645	Xeon E-2478
1080p
low	689 FPS	646 FPS
medium	689 FPS	529 FPS
high	689 FPS	466 FPS
ultra	689 FPS	404 FPS
1440p
low	689 FPS	588 FPS
medium	689 FPS	489 FPS
high	689 FPS	425 FPS
ultra	621 FPS	369 FPS
4K
low	539 FPS	424 FPS
medium	471 FPS	369 FPS
high	411 FPS	335 FPS
ultra	341 FPS	285 FPS

Open Ryzen 5 PRO 7645 Open Xeon E-2478

League of Legends

League of Legends

Valorant

Preset	Ryzen 5 PRO 7645	Xeon E-2478
1080p
low	689 FPS	694 FPS
medium	689 FPS	694 FPS
high	689 FPS	694 FPS
ultra	689 FPS	652 FPS
1440p
low	689 FPS	694 FPS
medium	689 FPS	694 FPS
high	689 FPS	608 FPS
ultra	645 FPS	535 FPS
4K
low	675 FPS	536 FPS
medium	594 FPS	490 FPS
high	526 FPS	438 FPS
ultra	437 FPS	382 FPS

Open Ryzen 5 PRO 7645 Open Xeon E-2478

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 5 PRO 7645 and Xeon E-2478

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.

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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

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