
Athlon MP 2800+ vs Pentium 4 2.66

Athlon MP 2800+

Pentium 4 2.66
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Athlon MP 2800+ is positioned at rank 1026 and the Pentium 4 2.66 is on rank 1113, so the Athlon MP 2800+ offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon MP 2800+
Performance Per Dollar Pentium 4 2.66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon MP 2800+ | Pentium 4 2.66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($10) | ⚠️ Higher cost ($300) |
| Longevity | 🛑 Legacy (K7 (2000−2004) / 130 nm) | 🛑 Legacy (NetBurst (2000−2006) / 130 nm) |
💎 Value Proposition
| Insight | Athlon MP 2800+ | Pentium 4 2.66 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+2916%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($10) | ⚠️ Higher cost ($300) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Athlon MP 2800+ and Pentium 4 2.66

Athlon MP 2800+
The Athlon MP 2800+ is manufactured by AMD. It was released in 6 May 2003 (22 years ago). It is based on the K7 (2000−2004) architecture. It features 1 cores and 1 threads. Max frequency: 2.13 GHz. L2 cache: 512 kB. Built on 130 nm process technology. Thermal design power (TDP): 60 Watt. Passmark benchmark score: 380 points. Launch price was $275.

Pentium 4 2.66
The Pentium 4 2.66 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 1 cores and 1 threads. Max frequency: 2.66 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 110 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 378 points. Launch price was $69.
Processing Power
Both the Athlon MP 2800+ and Pentium 4 2.66 share an identical 1-core/1-thread configuration. Boost clocks reach 2.13 GHz on the Athlon MP 2800+ versus 2.66 GHz on the Pentium 4 2.66 — a 22.1% clock advantage for the Pentium 4 2.66. The Athlon MP 2800+ uses the K7 (2000−2004) architecture (130 nm), while the Pentium 4 2.66 uses NetBurst (2000−2006) (130 nm). In PassMark, the Athlon MP 2800+ scores 380 against the Pentium 4 2.66's 378 — a 0.5% lead for the Athlon MP 2800+.
| Feature | Athlon MP 2800+ | Pentium 4 2.66 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2.13 GHz | 2.66 GHz+25% |
| L3 Cache | — | 0 kB |
| L2 Cache | 512 kB | 512 kB |
| Process | 130 nm | 130 nm |
| Architecture | K7 (2000−2004) | NetBurst (2000−2006) |
| PassMark | 380 | 378 |
Value Analysis
The Athlon MP 2800+ launched at $275 MSRP, while the Pentium 4 2.66 debuted at $300. At current prices ($10 vs $300), the Athlon MP 2800+ is $290 cheaper. In terms of value (PassMark points per dollar), the Athlon MP 2800+ delivers 38.0 pts/$ vs 1.3 pts/$ for the Pentium 4 2.66 — making the Athlon MP 2800+ the 187.2% better value option.
| Feature | Athlon MP 2800+ | Pentium 4 2.66 |
|---|---|---|
| MSRP | $275-8% | $300 |
| Avg Price (30d) | $10-97% | $300 |
| Performance per Dollar | 38.0+2823% | 1.3 |
| Release Date | 2003 | 2002 |
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