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 i5-2500S 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 i5-2500S 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 i5-2500S

2011

Why buy it

✅Costs $102 less on MSRP ($192 MSRP vs $294 MSRP).
✅Delivers 52.3% more PassMark for each dollar spent, at 17.6 vs 11.5 PassMark/$ ($192 MSRP vs $294 MSRP).
✅Draws 65W instead of 130W, a 65W reduction.
✅Integrated graphics onboard with HD Graphics 2000, 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 PassMark (3,373 vs 3,391).
❌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.

Xeon W3565

2009

Why buy it

✅Better for gaming: +8.0% 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.
✅125% more PCIe lanes (36 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 11.5 vs 17.6 PassMark/$ ($294 MSRP vs $192 MSRP).
❌100% higher power demand at 130W vs 65W.
❌No integrated graphics, while Core i5-2500S can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i5-2500S.

Quick Answers

So, is Xeon W3565 better than Core i5-2500S?

Not really, because they are built for different jobs. Xeon W3565 makes more sense for workstation-style multi-core throughput, while Core i5-2500S 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 8.0% 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 0.5% better PassMark, 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 still the much better call for a fresh build. Xeon W3565 comes in 53.1% more expensive on MSRP at $294 MSRP versus $192 MSRP, and it still gives you a 8.0% average FPS lead across 50 shared CPU game tests in our data. Core i5-2500S only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 52.3% better value on paper (17.6 vs 11.5 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.

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

Core i5-2500S 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 i5-2500S vs Xeon W3565 Technical Specifications

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

Core i5-2500S

The Core i5-2500S is manufactured by Intel. It was released in 9 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 2.7 GHz, with boost up to 3.7 GHz. L3 cache: 6144 kB (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: 3,373 points. Launch price was $75.

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.

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Processing Power

The Core i5-2500S packs 4 cores / 4 threads, matching the Xeon W3565's 4 cores. Boost clocks reach 3.7 GHz on the Core i5-2500S versus 3.46 GHz on the Xeon W3565 — a 6.7% clock advantage for the Core i5-2500S (base: 2.7 GHz vs 3.2 GHz). The Core i5-2500S uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Xeon W3565 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core i5-2500S scores 3,373 against the Xeon W3565's 3,391 — a 0.5% lead for the Xeon W3565. Geekbench 6 single-core — the metric most relevant to gaming — records 600 vs 513, a 15.6% lead for the Core i5-2500S that directly translates to higher frame rates. L3 cache: 6144 kB (total) on the Core i5-2500S vs 8 MB (total) on the Xeon W3565.

Feature	Core i5-2500S	Xeon W3565
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.7 GHz+7%	3.46 GHz
Base Clock	2.7 GHz	3.2 GHz+19%
L3 Cache	6144 kB (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	3,373	3,391
Geekbench 6 Single	600+17%	513
Geekbench 6 Multi	—	1,726

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Memory & Platform

The Core i5-2500S 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 i5-2500S versus DDR3-1066 on the Xeon W3565 — the Core i5-2500S supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-2500S supports up to 32 GB of RAM compared to 24 GB — 33.3% more capacity for professional workloads. Memory channels: 2 (Core i5-2500S) vs 3 (Xeon W3565). PCIe lanes: 16 (Core i5-2500S) vs 36 (Xeon W3565) — the Xeon W3565 offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,H67,P67,Z68,B75,Z77 (Core i5-2500S) and X58 (Xeon W3565).

Feature	Core i5-2500S	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%

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Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-2500S) vs Yes (Xeon W3565). The Core i5-2500S includes integrated graphics (HD Graphics 2000), while the Xeon W3565 requires a dedicated GPU. Primary use case: Core i5-2500S targets Legacy Desktop. Direct competitor: Core i5-2500S rivals Phenom II X4 980.

Feature	Core i5-2500S	Xeon W3565
Integrated GPU	Yes	No
IGPU Model	HD Graphics 2000	—
Unlocked	No	—
AVX-512	No	No
Virtualization	VT-x, VT-d, EPT	Yes
Target Use	Legacy Desktop	—

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Value Analysis

At launch, the Core i5-2500S was priced at $192, while the Xeon W3565 came in at $294. On launch pricing ($192 vs $294), Core i5-2500S was $102 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-2500S delivers 17.6 pts/$ vs 11.5 pts/$ for the Xeon W3565 — making the Core i5-2500S the 41.5% better value option.

Feature	Core i5-2500S	Xeon W3565
MSRP	$192-35%	$294
Performance per Dollar	17.6+53%	11.5
Release Date	2011	2009

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