Core 2 Extreme X7800 vs Xeon W3503

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 Extreme X7800 vs Xeon W3503 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 Extreme X7800 vs Xeon W3503: 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 Extreme X7800

2007

Why buy it

✅Draws 4W instead of 130W, a 126W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

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

Xeon W3503

2009

Why buy it

Trade-offs

❌Lower PassMark (1,125 vs 1,138).
❌3150% higher power demand at 130W vs 4W.

Quick Answers

So, is Core 2 Extreme X7800 better than Xeon W3503?

Not really, because they are built for different jobs. Xeon W3503 makes more sense for workstation-style multi-core throughput, while Core 2 Extreme X7800 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 Extreme X7800 is the better pick. According to our tests, it delivers 0.1% 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 Extreme X7800 is the stronger fit. You are getting 1.2% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Extreme X7800 still makes the most sense overall. Core 2 Extreme X7800 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon W3503 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2007). That makes it the safer long-term bet.

Core 2 Extreme X7800 vs Xeon W3503 Technical Specifications

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

Core 2 Extreme X7800

The Core 2 Extreme X7800 is manufactured by Intel. It was released in 17 July 2007 (18 years ago). It is based on the Merom XE (2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB L2 Cache. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,138 points. Launch price was $851.

Xeon W3503

The Xeon W3503 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.4 GHz, with boost up to 2.4 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: 1,125 points. Launch price was $65.

⚡

Processing Power

Both the Core 2 Extreme X7800 and Xeon W3503 share an identical 2-core/2-thread configuration. Boost clocks reach 2.6 GHz on the Core 2 Extreme X7800 versus 2.4 GHz on the Xeon W3503 — a 8% clock advantage for the Core 2 Extreme X7800 (base: 2.6 GHz vs 2.4 GHz). The Core 2 Extreme X7800 uses the Merom XE (2007) architecture (65 nm), while the Xeon W3503 uses Bloomfield (2008−2010) (45 nm). In PassMark, the Core 2 Extreme X7800 scores 1,138 against the Xeon W3503's 1,125 — a 1.1% lead for the Core 2 Extreme X7800. L3 cache: 4 MB L2 Cache on the Core 2 Extreme X7800 vs 4 MB (total) on the Xeon W3503.

Feature	Core 2 Extreme X7800	Xeon W3503
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.6 GHz+8%	2.4 GHz
Base Clock	2.6 GHz+8%	2.4 GHz
L3 Cache	4 MB L2 Cache	4 MB (total)
L2 Cache	4 MB+1500%	256 kB (per core)
Process	65 nm	45 nm-31%
Architecture	Merom XE (2007)	Bloomfield (2008−2010)
PassMark	1,138+1%	1,125

🧠

Memory & Platform

The Core 2 Extreme X7800 uses the PGA478 socket (PCIe 1.1), while the Xeon W3503 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.