Phenom II X4 810 vs Xeon X5355

Phenom II X4 810 vs Xeon X5355 Performance Spectrum

Phenom II X4 810

4 / 4

2,036

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon X5355

4 / 4

2,039

+0.1%

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 X4 810 vs Xeon X5355 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 X4 810 vs Xeon X5355: 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 X4 810

2009

Why buy it

✅Costs $4,316 less on MSRP ($175 MSRP vs $4,491 MSRP).
✅Delivers 2462.5% more PassMark for each dollar spent, at 11.6 vs 0.5 PassMark/$ ($175 MSRP vs $4,491 MSRP).
✅Draws 95W instead of 120W, a 25W reduction.

Trade-offs

❌Lower PassMark (2,036 vs 2,039).
❌Smaller total L3 cache (4 MB vs 8 MB).

Xeon X5355

2006

Why buy it

✅+0.1% higher PassMark.
✅+100% larger total L3 cache (8 MB vs 4 MB).

Trade-offs

❌Lower PassMark per dollar, at 0.5 vs 11.6 PassMark/$ ($4,491 MSRP vs $175 MSRP).
❌26.3% higher power demand at 120W vs 95W.

Quick Answers

So, is Phenom II X4 810 better than Xeon X5355?

Not really, because they are built for different jobs. Xeon X5355 makes more sense for workstation-style multi-core throughput, while Phenom II X4 810 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 X5355 is the stronger fit. You are getting 0.1% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 100% larger total L3 cache (8 MB vs 4 MB).

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

Phenom II X4 810 is the better buy right now. Phenom II X4 810 comes in $4,316 cheaper on MSRP at $175 MSRP versus $4,491 MSRP, and it still gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon X5355 is still stronger for heavier multi-core work with 0.1% better PassMark. It is also 2462.5% better value on MSRP (11.6 vs 0.5 PassMark/$), 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 X4 810 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2006). That makes it the safer long-term bet.

Phenom II X4 810 vs Xeon X5355 Technical Specifications

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

Phenom II X4 810

The Phenom II X4 810 is manufactured by AMD. It was released in 9 February 2009 (16 years ago). It is based on the Deneb (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,036 points. Launch price was $116.

Xeon X5355

The Xeon X5355 is manufactured by Intel. It was released in 14 November 2006 (19 years ago). It is based on the Clovertown (2006−2007) architecture. It features 4 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 0.67 GHz. L3 cache: 8 MB L2 Cache. L2 cache: 4 MB (total). Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 120 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,039 points. Launch price was $1,172.

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Processing Power

Both the Phenom II X4 810 and Xeon X5355 share an identical 4-core/4-thread configuration. Boost clocks reach 2.6 GHz on the Phenom II X4 810 versus 0.67 GHz on the Xeon X5355 — a 118% clock advantage for the Phenom II X4 810 (base: 2.6 GHz vs 2.66 GHz). The Phenom II X4 810 uses the Deneb (2009−2011) architecture (45 nm), while the Xeon X5355 uses Clovertown (2006−2007) (65 nm). In PassMark, the Phenom II X4 810 scores 2,036 against the Xeon X5355's 2,039 — a 0.1% lead for the Xeon X5355. L3 cache: 4 MB (total) on the Phenom II X4 810 vs 8 MB L2 Cache on the Xeon X5355.

Feature	Phenom II X4 810	Xeon X5355
Cores / Threads	4 / 4	4 / 4
Boost Clock	2.6 GHz+288%	0.67 GHz
Base Clock	2.6 GHz	2.66 GHz+2%
L3 Cache	4 MB (total)	8 MB L2 Cache+100%
L2 Cache	512 kB (per core)	4 MB (total)+700%
Process	45 nm-31%	65 nm
Architecture	Deneb (2009−2011)	Clovertown (2006−2007)
PassMark	2,036	2,039

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Memory & Platform

The Phenom II X4 810 uses the AM3 socket (PCIe 2.0), while the Xeon X5355 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Phenom II X4 810	Xeon X5355
Socket	AM3	LGA771
PCIe Generation	PCIe 2.0	PCIe 2.0

💰

Value Analysis

At launch, the Phenom II X4 810 was priced at $175, while the Xeon X5355 came in at $4491. On launch pricing ($175 vs $4491), Phenom II X4 810 was $4316 cheaper. In terms of value on MSRP (PassMark points per dollar), the Phenom II X4 810 delivers 11.6 pts/$ vs 0.5 pts/$ for the Xeon X5355 — making the Phenom II X4 810 the 185% better value option.

Feature	Phenom II X4 810	Xeon X5355
MSRP	$175-96%	$4491
Performance per Dollar	11.6+2220%	0.5
Release Date	2009	2006

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