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 i5-2405S vs Xeon W3565 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 i5-2405S vs Xeon W3565: Pros, Cons & Final Verdict

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

Core i5-2405S

2011

Why buy it

✅Draws 65W instead of 130W, a 65W reduction.
✅Integrated graphics onboard with Intel HD Graphics 3000, while Xeon W3565 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon W3565.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon W3565 across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (1,480 vs 1,726).
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon W3565, which brings 4 cores / 8 threads and 36 PCIe lanes.
❌
5.1% HIGHER MSRP
$309 MSRPvs$294 MSRP

Xeon W3565

2009

Why buy it

✅Better for gaming: +7.9% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads, plus 36 PCIe lanes vs 16.
✅Costs $15 less on MSRP ($294 MSRP vs $309 MSRP).
✅125% more PCIe lanes (36 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌100% higher power demand at 130W vs 65W.
❌No integrated graphics, while Core i5-2405S can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-2405S.

Quick Answers

So, is Xeon W3565 better than Core i5-2405S?

Not really, because they are built for different jobs. Xeon W3565 makes more sense for workstation-style multi-core throughput, while Core i5-2405S is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon W3565 is the better pick. According to our tests, it delivers 7.9% 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, Xeon W3565 is the stronger fit. You are getting 16.6% better Geekbench multi-core, backed by 4 cores and 8 threads. It also has the larger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

Xeon W3565 is the better buy right now. Xeon W3565 comes in $15 cheaper on MSRP at $294 MSRP versus $309 MSRP, and it still gives you a 7.9% average FPS lead across 50 shared CPU game tests in our data. It is also 4.9% better value on MSRP (11.5 vs 11.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Core i5-2405S makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009). That makes it the safer long-term bet.

Core i5-2405S vs Xeon W3565 Technical Specifications

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

Core i5-2405S

The Core i5-2405S is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 3.3 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 3,397 points. Launch price was $472.

Xeon W3565

The Xeon W3565 is manufactured by Intel. It was released in 1 November 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 3.2 GHz, with boost up to 3.46 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,391 points. Launch price was $70.

⚡

Processing Power

The Core i5-2405S packs 4 cores / 4 threads, matching the Xeon W3565's 4 cores. Boost clocks reach 3.3 GHz on the Core i5-2405S versus 3.46 GHz on the Xeon W3565 — a 4.7% clock advantage for the Xeon W3565 (base: 2.5 GHz vs 3.2 GHz). The Core i5-2405S uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Xeon W3565 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core i5-2405S scores 3,397 against the Xeon W3565's 3,391 — a 0.2% lead for the Core i5-2405S. Geekbench 6 single-core — the metric most relevant to gaming — records 557 vs 513, a 8.2% lead for the Core i5-2405S that directly translates to higher frame rates. Multi-core Geekbench: 1,480 vs 1,726 (15.3% advantage for the Xeon W3565). L3 cache: 6 MB (total) on the Core i5-2405S vs 8 MB (total) on the Xeon W3565.

Feature	Core i5-2405S	Xeon W3565
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.3 GHz	3.46 GHz+5%
Base Clock	2.5 GHz	3.2 GHz+28%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm-29%	45 nm
Architecture	Sandy Bridge (2011−2013)	Bloomfield (2008−2010)
PassMark	3,397	3,391
Geekbench 6 Single	557+9%	513
Geekbench 6 Multi	1,480	1,726+17%

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Memory & Platform

The Core i5-2405S uses the LGA1155 socket (PCIe 2.0), while the Xeon W3565 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i5-2405S versus DDR3-1066 on the Xeon W3565 — the Core i5-2405S supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-2405S supports up to 32 GB of RAM compared to 24 GB — 33.3% more capacity for professional workloads. Memory channels: 2 (Core i5-2405S) vs 3 (Xeon W3565). PCIe lanes: 16 (Core i5-2405S) vs 36 (Xeon W3565) — the Xeon W3565 offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,B65,Q65,H67,P67,Z68,B75,Z77 (Core i5-2405S) and X58 (Xeon W3565).

Feature	Core i5-2405S	Xeon W3565
Socket	LGA1155	LGA1366
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	DDR3-1333+25%	DDR3-1066
Max RAM Capacity	32 GB+33%	24 GB
RAM Channels	2	3+50%
ECC Support	No	Yes
PCIe Lanes	16	36+125%

🔧

Advanced Features

Virtualization support: VT-x / EPT (Core i5-2405S) vs Yes (Xeon W3565). The Core i5-2405S includes integrated graphics (Intel HD Graphics 3000), while the Xeon W3565 requires a dedicated GPU. Primary use case: Core i5-2405S targets Budget.

Feature	Core i5-2405S	Xeon W3565
Integrated GPU	Yes	No
IGPU Model	Intel HD Graphics 3000	—
Unlocked	No	—
AVX-512	No	No
Virtualization	VT-x / EPT	Yes
Target Use	Budget	—

💰

Value Analysis

At launch, the Core i5-2405S was priced at $309, while the Xeon W3565 came in at $294. On launch pricing ($309 vs $294), Xeon W3565 was $15 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-2405S delivers 11.0 pts/$ vs 11.5 pts/$ for the Xeon W3565 — making the Xeon W3565 the 4.8% better value option.

Feature	Core i5-2405S	Xeon W3565
MSRP	$309	$294-5%
Performance per Dollar	11.0	11.5+5%
Release Date	2011	2009

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