Athlon 64 FX-51 vs Pentium D 830
Athlon 64 FX-51
Pentium D 830
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 64 FX-51 is positioned at rank 1133 and the Pentium D 830 is on rank 1103, so the Pentium D 830 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon 64 FX-51
Performance Per Dollar Pentium D 830
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($733) | ✅ More affordable ($20) |
| Longevity | 🛑 Legacy (SledgeHammer (2003−2005) / 130 nm) | 🛑 Legacy (NetBurst (2000−2006) / 90 nm) |
💎 Value Proposition
| Insight | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+3583%) |
| Upfront Cost | ⚠️ Higher cost ($733) | ✅ More affordable ($20) |
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 64 FX-51 and Pentium D 830
Athlon 64 FX-51
The Athlon 64 FX-51 is manufactured by AMD. It was released in 2009-01-01. It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 615 points. Launch price was $149.
Pentium D 830
The Pentium D 830 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 130 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 618 points. Launch price was $69.
Processing Power
The Athlon 64 FX-51 packs 1 cores / 1 threads, while the Pentium D 830 offers 2 cores / 2 threads — the Pentium D 830 has 1 more core. Boost clocks reach 2.2 GHz on the Athlon 64 FX-51 versus 3 GHz on the Pentium D 830 — a 30.8% clock advantage for the Pentium D 830. The Athlon 64 FX-51 uses the SledgeHammer (2003−2005) architecture (130 nm), while the Pentium D 830 uses NetBurst (2000−2006) (90 nm). In PassMark, the Athlon 64 FX-51 scores 615 against the Pentium D 830's 618 — a 0.5% lead for the Pentium D 830. Both processors carry 0 kB of L3 cache.
| Feature | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| Cores / Threads | 1 / 1 | 2 / 2+100% |
| Boost Clock | 2.2 GHz | 3 GHz+36% |
| Base Clock | — | 3 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 1 MB | 2 MB+100% |
| Process | 130 nm | 90 nm-31% |
| Architecture | SledgeHammer (2003−2005) | NetBurst (2000−2006) |
| PassMark | 615 | 618 |
| Geekbench 6 Single | — | 151 |
| Geekbench 6 Multi | — | 341 |
Memory & Platform
The Athlon 64 FX-51 uses the 940 socket (PCIe 1.1), while the Pentium D 830 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-400 on the Athlon 64 FX-51 versus DDR2-667 on the Pentium D 830 — the Pentium D 830 supports -202% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 4 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon 64 FX-51) vs 16 (Pentium D 830) — the Pentium D 830 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 940 (Athlon 64 FX-51) and 945,955,975 (Pentium D 830).
| Feature | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| Socket | 940 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR-400 | DDR2-667 |
| Max RAM Capacity | 4 GB | 4 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Virtualization: not specified (Athlon 64 FX-51) / None (Pentium D 830). Primary use case: Pentium D 830 targets Legacy Desktop.
| Feature | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | None |
| Target Use | — | Legacy Desktop |
Value Analysis
The Athlon 64 FX-51 launched at $733 MSRP, while the Pentium D 830 debuted at $316. At current prices ($733 vs $20), the Pentium D 830 is $713 cheaper. In terms of value (PassMark points per dollar), the Athlon 64 FX-51 delivers 0.8 pts/$ vs 30.9 pts/$ for the Pentium D 830 — making the Pentium D 830 the 189.4% better value option.
| Feature | Athlon 64 FX-51 | Pentium D 830 |
|---|---|---|
| MSRP | $733 | $316-57% |
| Avg Price (30d) | $733 | $20-97% |
| Performance per Dollar | 0.8 | 30.9+3762% |
| Release Date | 2003 | 2005 |
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