Phenom II X2 B55
Xeon 5140
Phenom II X2 B55 vs Xeon 5140 Performance Spectrum
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 B55 vs Xeon 5140 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.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Phenom II X2 B55 vs Xeon 5140: 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 B55
2009Why buy it
Trade-offs
- ❌Lower PassMark (1,222 vs 1,235).
- ❌23.1% higher power demand at 80W vs 65W.
Xeon 5140
2006Why buy it
- ✅+1.1% higher PassMark.
- ✅Draws 65W instead of 80W, a 15W reduction.
Trade-offs
- ❌Fewer obvious downsides in this matchup outside of normal market pricing swings.
Quick Answers
So, is Xeon 5140 better than Phenom II X2 B55?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Phenom II X2 B55 vs Xeon 5140 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Phenom II X2 B55
The Phenom II X2 B55 is manufactured by AMD. It was released in 1 October 2009 (16 years ago). It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,222 points. Launch price was $48.
Xeon 5140
The Xeon 5140 is manufactured by Intel. It was released in Junho 2006 (19 years ago). It is based on the Woodcrest (2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.33 GHz, with boost up to 2.33 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 65 Watt. Memory support: DDR2. Passmark benchmark score: 1,235 points. Launch price was $15.
Processing Power
Both the Phenom II X2 B55 and Xeon 5140 share an identical 2-core/2-thread configuration. Boost clocks reach 3 GHz on the Phenom II X2 B55 versus 2.33 GHz on the Xeon 5140 — a 25.1% clock advantage for the Phenom II X2 B55 (base: 3 GHz vs 2.33 GHz). The Phenom II X2 B55 uses the Callisto (2009−2010) architecture (45 nm), while the Xeon 5140 uses Woodcrest (2006) (65 nm). In PassMark, the Phenom II X2 B55 scores 1,222 against the Xeon 5140's 1,235 — a 1.1% lead for the Xeon 5140. L3 cache: 6 MB (total) on the Phenom II X2 B55 vs 0 kB on the Xeon 5140.
| Feature | Phenom II X2 B55 | Xeon 5140 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3 GHz+29% | 2.33 GHz |
| Base Clock | 3 GHz+29% | 2.33 GHz |
| L3 Cache | 6 MB (total) | 0 kB |
| L2 Cache | 512 kB (per core) | 4 MB+700% |
| Process | 45 nm-31% | 65 nm |
| Architecture | Callisto (2009−2010) | Woodcrest (2006) |
| PassMark | 1,222 | 1,235+1% |
Memory & Platform
The Phenom II X2 B55 uses the AM3 socket (PCIe 2.0), while the Xeon 5140 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X2 B55 | Xeon 5140 |
|---|---|---|
| Socket | AM3 | LGA771 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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