Ryzen 7 3700X vs Xeon E5405

Ryzen 7 3700X vs Xeon E5405 Performance Spectrum

Ryzen 7 3700X

8 / 16

22,430

+1179.5%

Ryzen Threadripper PRO 3955WX

Ryzen 9 9900X3D

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Xeon E5405

4 / 4

1,753

0.0%

Celeron P4600

Celeron Dual-Core T3100

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 7 3700X vs Xeon E5405 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 7 3700X vs Xeon E5405: Pros, Cons & Final Verdict

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

Ryzen 7 3700X

2019

Why buy it

✅Better for gaming: +480.9% higher average FPS across 50 shared CPU benchmark tests.
✅+166.7% larger total L3 cache (32 MB vs 12 MB).
✅Delivers 712.8% more PassMark for each dollar spent, at 68.2 vs 8.4 PassMark/$ ($329 MSRP vs $209 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌
57.4% HIGHER MSRP
$329 MSRPvs$209 MSRP

Xeon E5405

2007

Why buy it

✅Costs $120 less on MSRP ($209 MSRP vs $329 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 3700X across 50 shared CPU benchmark tests.
❌Lower PassMark (1,753 vs 22,430).
❌Smaller total L3 cache (12 MB vs 32 MB).
❌Lower PassMark per dollar, at 8.4 vs 68.2 PassMark/$ ($209 MSRP vs $329 MSRP).
❌23.1% higher power demand at 80W vs 65W.

Quick Answers

So, is Ryzen 7 3700X better than Xeon E5405?

Not really, because they are built for different jobs. Xeon E5405 makes more sense for workstation-style multi-core throughput, while Ryzen 7 3700X is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 3700X is the better pick. According to our tests, it delivers 480.9% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 3700X is the stronger fit. You are getting 1179.5% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 166.7% larger total L3 cache (32 MB vs 12 MB).

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

Ryzen 7 3700X is the better buy right now. Ryzen 7 3700X comes in 57.4% more expensive on MSRP at $329 MSRP versus $209 MSRP, and it still gives you a 480.9% average FPS lead across 50 shared CPU game tests in our data. It is also 712.8% better value on MSRP (68.2 vs 8.4 PassMark/$), 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 7 3700X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2007), 166.7% larger total L3 cache (32 MB vs 12 MB), and more multi-core headroom with 8 cores / 16 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Ryzen 7 3700X vs Xeon E5405 Technical Specifications

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

Ryzen 7 3700X

The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.

Xeon E5405

The Xeon E5405 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,753 points. Launch price was $209.

⚡

Processing Power

The Ryzen 7 3700X packs 8 cores / 16 threads, while the Xeon E5405 offers 4 cores / 4 threads — the Ryzen 7 3700X has 4 more cores. Boost clocks reach 4.4 GHz on the Ryzen 7 3700X versus 2 GHz on the Xeon E5405 — a 75% clock advantage for the Ryzen 7 3700X (base: 3.6 GHz vs 2 GHz). The Ryzen 7 3700X uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Xeon E5405 uses Harpertown (2007−2008) (45 nm). In PassMark, the Ryzen 7 3700X scores 22,430 against the Xeon E5405's 1,753 — a 171% lead for the Ryzen 7 3700X. L3 cache: 32 MB on the Ryzen 7 3700X vs 12 MB L2 Cache on the Xeon E5405.

Feature	Ryzen 7 3700X	Xeon E5405
Cores / Threads	8 / 16+100%	4 / 4
Boost Clock	4.4 GHz+120%	2 GHz
Base Clock	3.6 GHz+80%	2 GHz
L3 Cache	32 MB+167%	12 MB L2 Cache
L2 Cache	512K (per core)+8433%	6 MB (total)
Process	7 nm, 12 nm-84%	45 nm
Architecture	Matisse (Zen 2) (2019−2020)	Harpertown (2007−2008)
PassMark	22,430+1180%	1,753

🧠

Memory & Platform

The Ryzen 7 3700X uses the AM4 socket (PCIe 4.0), while the Xeon E5405 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 3700X versus DDR2-667 on the Xeon E5405 — the Ryzen 7 3700X supports 379.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 3700X supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 3700X) vs 0 (Xeon E5405) — the Ryzen 7 3700X offers 24 more lanes for additional GPUs or NVMe drives.

Feature	Ryzen 7 3700X	Xeon E5405
Socket	AM4	LGA771
PCIe Generation	PCIe 4.0+100%	PCIe 2.0
Max RAM Speed	DDR4-3200+380%	DDR2-667
Max RAM Capacity	128 GB+300%	32 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	24	0

🔧

Advanced Features

Virtualization: not specified (Ryzen 7 3700X) / VT-x (Xeon E5405). Primary use case: Xeon E5405 targets Server.

Feature	Ryzen 7 3700X	Xeon E5405
Integrated GPU	No	No
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x
Target Use	—	Server

💰

Value Analysis

At launch, the Ryzen 7 3700X was priced at $329, while the Xeon E5405 came in at $209. On launch pricing ($329 vs $209), Xeon E5405 was $120 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 3700X delivers 68.2 pts/$ vs 8.4 pts/$ for the Xeon E5405 — making the Ryzen 7 3700X the 156.2% better value option.

Feature	Ryzen 7 3700X	Xeon E5405
MSRP	$329	$209-36%
Performance per Dollar	68.2+712%	8.4
Release Date	2019	2007

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