Core 2 Duo T5500 vs Xeon E5504

Intel

Core 2 Duo T5500

2 Cores2 Thrd2 WWMax: 1.66 GHz2007
Similar parts
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VS
Intel

Xeon E5504

4 Cores4 Thrd80 WWMax: 2 GHz2009

Core 2 Duo T5500 vs Xeon E5504 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.

Core 2 Duo T5500 vs Xeon E5504 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 T5500 vs Xeon E5504: 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 T5500

2007

Why buy it

  • Better for gaming: +4.6% higher average FPS across 50 shared CPU benchmark tests.
  • Draws 2W instead of 80W, a 78W reduction.

Trade-offs

  • Less compelling for workstation-style loads than Xeon E5504, which brings 4 cores / 4 threads.

Xeon E5504

2009

Why buy it

  • Better for workstations and heavier parallel workloads: 4 cores / 4 threads.

Trade-offs

  • Worse for gaming: lower average FPS than Core 2 Duo T5500 across 50 shared CPU benchmark tests.
  • Lower PassMark (1,652 vs 1,660).
  • 3900% higher power demand at 80W vs 2W.

Quick Answers

So, is Core 2 Duo T5500 better than Xeon E5504?
Not really, because they are built for different jobs. Xeon E5504 makes more sense for workstation-style multi-core throughput, while Core 2 Duo T5500 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 T5500 is the better pick. According to our tests, it delivers 4.6% 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 T5500 is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Core 2 Duo T5500 still makes the most sense overall. Core 2 Duo T5500 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 4.6% average FPS lead across 50 shared CPU game tests in our data.
Which one is more future-proof for 2026 and beyond?
Xeon E5504 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 Duo T5500 vs Xeon E5504 Technical Specifications

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

Intel

Core 2 Duo T5500

The Core 2 Duo T5500 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.66 GHz, with boost up to 1.66 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 1,660 points. Launch price was $249.

Intel

Xeon E5504

The Xeon E5504 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,652 points. Launch price was $60.

Processing Power

The Core 2 Duo T5500 packs 2 cores / 2 threads, while the Xeon E5504 offers 4 cores / 4 threads — the Xeon E5504 has 2 more cores. Boost clocks reach 1.66 GHz on the Core 2 Duo T5500 versus 2 GHz on the Xeon E5504 — a 18.6% clock advantage for the Xeon E5504 (base: 1.66 GHz vs 2 GHz). The Core 2 Duo T5500 uses the Merom (2006−2008) architecture (65 nm), while the Xeon E5504 uses Gainestown (2009−2010) (45 nm). In PassMark, the Core 2 Duo T5500 scores 1,660 against the Xeon E5504's 1,652 — a 0.5% lead for the Core 2 Duo T5500. L3 cache: 0 kB on the Core 2 Duo T5500 vs 4 MB (total) on the Xeon E5504.

FeatureCore 2 Duo T5500Xeon E5504
Cores / Threads
2 / 2
4 / 4+100%
Boost Clock
1.66 GHz
2 GHz+20%
Base Clock
1.66 GHz
2 GHz+20%
L3 Cache
0 kB
4 MB (total)
L2 Cache
2 MB+700%
256 kB (per core)
Process
65 nm
45 nm-31%
Architecture
Merom (2006−2008)
Gainestown (2009−2010)
PassMark
1,660
1,652
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Memory & Platform

The Core 2 Duo T5500 uses the PGA478 socket (PCIe 1.1), while the Xeon E5504 uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.

FeatureCore 2 Duo T5500Xeon E5504
Socket
PGA478
LGA1366
PCIe Generation
PCIe 1.1
PCIe 2.0+82%