Core 2 Duo E8400 vs Xeon W3505

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 2 Duo E8400 vs Xeon W3505 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 2 Duo E8400 vs Xeon W3505: Pros, Cons & Final Verdict

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

Core 2 Duo E8400

2008

Why buy it

✅Draws 65W instead of 130W, a 65W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (true), unlike Xeon W3505.

Trade-offs

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

Xeon W3505

2009

Why buy it

Trade-offs

❌Lower PassMark (1,163 vs 1,165).
❌100% higher power demand at 130W vs 65W.
❌No boxed cooler included, unlike Core 2 Duo E8400.

Quick Answers

So, is Core 2 Duo E8400 better than Xeon W3505?

Not really, because they are built for different jobs. Xeon W3505 makes more sense for workstation-style multi-core throughput, while Core 2 Duo E8400 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core 2 Duo E8400 is the better pick. According to our tests, it delivers 2.1% 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, Core 2 Duo E8400 is the stronger fit. You are getting 0.2% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Duo E8400 still makes the most sense overall. Core 2 Duo E8400 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon W3505 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2008). That makes it the safer long-term bet.

Core 2 Duo E8400 vs Xeon W3505 Technical Specifications

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

Core 2 Duo E8400

The Core 2 Duo E8400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,165 points. Launch price was $249.

Xeon W3505

The Xeon W3505 is manufactured by Intel. It was released in 2015-01-01. It is based on the Bloomfield (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.53 GHz, with boost up to 0.53 GHz. L3 cache: 4 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: 1,163 points. Launch price was $800.

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Processing Power

Both the Core 2 Duo E8400 and Xeon W3505 share an identical 2-core/2-thread configuration. Boost clocks reach 3 GHz on the Core 2 Duo E8400 versus 0.53 GHz on the Xeon W3505 — a 139.9% clock advantage for the Core 2 Duo E8400 (base: 3 GHz vs 2.53 GHz). The Core 2 Duo E8400 uses the Wolfdale (2008−2010) architecture (45 nm), while the Xeon W3505 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core 2 Duo E8400 scores 1,165 against the Xeon W3505's 1,163 — a 0.2% lead for the Core 2 Duo E8400. L3 cache: 0 kB on the Core 2 Duo E8400 vs 4 MB (total) on the Xeon W3505.

Feature	Core 2 Duo E8400	Xeon W3505
Cores / Threads	2 / 2	2 / 2
Boost Clock	3 GHz+466%	0.53 GHz
Base Clock	3 GHz+19%	2.53 GHz
L3 Cache	0 kB	4 MB (total)
L2 Cache	6 MB (total)+2300%	256 kB (per core)
Process	45 nm	45 nm
Architecture	Wolfdale (2008−2010)	Bloomfield (2008−2010)
PassMark	1,165	1,163

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Memory & Platform

The Core 2 Duo E8400 uses the LGA775 socket (PCIe 1.1), while the Xeon W3505 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.