Phenom II X2 X640 BE vs Xeon X3450

Phenom II X2 X640 BE vs Xeon X3450 Performance Spectrum

Phenom II X2 X640 BE

2 / 2

2,839

0.0%

Ryzen Threadripper 3990X

Xeon X3450

4 / 8

2,877

+1.3%

About PassMark

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.

Phenom II X2 X640 BE vs Xeon X3450 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.

Phenom II X2 X640 BE vs Xeon X3450: Pros, Cons & Final Verdict

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

Phenom II X2 X640 BE

2011

Why buy it

✅Draws 2W instead of 95W, a 93W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X3450 across 50 shared CPU benchmark tests.
❌Lower PassMark (2,839 vs 2,877).
❌Less compelling for workstation-style loads than Xeon X3450, which brings 4 cores / 8 threads.

Xeon X3450

2009

Why buy it

✅Better for gaming: +7.0% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Launch MSRP is still $241 MSRP, while Phenom II X2 X640 BE mostly shows up through inconsistent older-market listings.
❌4650% higher power demand at 95W vs 2W.

Quick Answers

So, is Xeon X3450 better than Phenom II X2 X640 BE?

Not really, because they are built for different jobs. Xeon X3450 makes more sense for workstation-style multi-core throughput, while Phenom II X2 X640 BE 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 X3450 is the better pick. According to our tests, it delivers 7.0% 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 X3450 is the stronger fit. You are getting 1.3% better PassMark, backed by 4 cores and 8 threads.

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

Xeon X3450 is the better buy right now. Xeon X3450 comes in at an unclear MSRP at $241 MSRP versus unclear MSRP, and it still gives you a 7.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (11.9 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Phenom II X2 X640 BE 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.

Phenom II X2 X640 BE vs Xeon X3450 Technical Specifications

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

Phenom II X2 X640 BE

The Phenom II X2 X640 BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 3.2 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 2,839 points. Launch price was $149.

Xeon X3450

The Xeon X3450 is manufactured by Intel. It was released in 8 September 2009 (16 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 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 95 Watt. Memory support: DDR3-800, DDR3-1066, DDR3-1333. Passmark benchmark score: 2,877 points. Launch price was $241.

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Processing Power

The Phenom II X2 X640 BE packs 2 cores / 2 threads, while the Xeon X3450 offers 4 cores / 8 threads — the Xeon X3450 has 2 more cores. Boost clocks reach 3.2 GHz on the Phenom II X2 X640 BE versus 3.2 GHz on the Xeon X3450 — identical boost frequencies. The Phenom II X2 X640 BE uses the Champlain (2010−2011) architecture (45 nm), while the Xeon X3450 uses Lynnfield (2009−2010) (45 nm). In PassMark, the Phenom II X2 X640 BE scores 2,839 against the Xeon X3450's 2,877 — a 1.3% lead for the Xeon X3450.

Feature	Phenom II X2 X640 BE	Xeon X3450
Cores / Threads	2 / 2	4 / 8+100%
Boost Clock	3.2 GHz	3.2 GHz
Base Clock	—	2.66 GHz
L3 Cache	—	8 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	45 nm	45 nm
Architecture	Champlain (2010−2011)	Lynnfield (2009−2010)
PassMark	2,839	2,877+1%

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Memory & Platform

The Phenom II X2 X640 BE uses the S1 socket (PCIe 2.0), while the Xeon X3450 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard.