Core i7-870S vs Xeon E5540

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 i7-870S vs Xeon E5540 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 i7-870S vs Xeon E5540: Pros, Cons & Final Verdict

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

Core i7-870S

2010

Why buy it

Trade-offs

❌Lower PassMark (2,765 vs 2,805).
❌Launch MSRP is still $300 MSRP, while Xeon E5540 mostly shows up through inconsistent older-market listings.

Xeon E5540

2009

Why buy it

✅+1.4% higher PassMark.
✅Draws 80W instead of 82W, a 2W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Core i7-870S better than Xeon E5540?

Not really, because they are built for different jobs. Xeon E5540 makes more sense for workstation-style multi-core throughput, while Core i7-870S 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 E5540 is the stronger fit. You are getting 1.4% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-870S is the better buy right now. Core i7-870S comes in at an unclear MSRP at $300 MSRP versus unclear MSRP, and it still gives you a 1.2% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5540 is still stronger for heavier multi-core work with 1.4% better PassMark. It is also 100.0% better value on MSRP (9.2 vs 0.0 PassMark/$), 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 i7-870S makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2009). That makes it the safer long-term bet.

Core i7-870S vs Xeon E5540 Technical Specifications

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

Core i7-870S

The Core i7-870S is manufactured by Intel. It was released in 19 July 2010 (15 years ago). It is based on the Lynnfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.66 GHz, with boost up to 3.6 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 82 Watt. Memory support: DDR3. Passmark benchmark score: 2,765 points. Launch price was $69.

Xeon E5540

The Xeon E5540 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.53 GHz, with boost up to 2.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 2,805 points. Launch price was $30.

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Processing Power

Both the Core i7-870S and Xeon E5540 share an identical 4-core/8-thread configuration. Boost clocks reach 3.6 GHz on the Core i7-870S versus 2.8 GHz on the Xeon E5540 — a 25% clock advantage for the Core i7-870S (base: 2.66 GHz vs 2.53 GHz). The Core i7-870S uses the Lynnfield (2009−2010) architecture (45 nm), while the Xeon E5540 uses Gainestown (2009−2010) (45 nm). In PassMark, the Core i7-870S scores 2,765 against the Xeon E5540's 2,805 — a 1.4% lead for the Xeon E5540. Both processors carry 8 MB (total) of L3 cache.

Feature	Core i7-870S	Xeon E5540
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.6 GHz+29%	2.8 GHz
Base Clock	2.66 GHz+5%	2.53 GHz
L3 Cache	8 MB (total)	8 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	45 nm	45 nm
Architecture	Lynnfield (2009−2010)	Gainestown (2009−2010)
PassMark	2,765	2,805+1%

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Memory & Platform

The Core i7-870S uses the LGA1156 socket (PCIe 2.0), while the Xeon E5540 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.