CPU
GPU
Pentium D 830
Athlon 64 FX-51
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 Pentium D 830 is positioned at rank 1103 and the Athlon 64 FX-51 is on rank 1133, 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 Pentium D 830
Performance Per Dollar Athlon 64 FX-51
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($20) | ⚠️ Higher cost ($733) |
| Longevity | 🛑 Legacy (NetBurst (2000−2006) / 90 nm) | 🛑 Legacy (SledgeHammer (2003−2005) / 130 nm) |
💎 Value Proposition
| Insight | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+3583%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($20) | ⚠️ Higher cost ($733) |
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 Pentium D 830 and Athlon 64 FX-51
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.
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.
Processing Power
The Pentium D 830 packs 2 cores / 2 threads, while the Athlon 64 FX-51 offers 1 cores / 1 threads — the Pentium D 830 has 1 more core. Boost clocks reach 3 GHz on the Pentium D 830 versus 2.2 GHz on the Athlon 64 FX-51 — a 30.8% clock advantage for the Pentium D 830. The Pentium D 830 uses the NetBurst (2000−2006) architecture (90 nm), while the Athlon 64 FX-51 uses SledgeHammer (2003−2005) (130 nm). In PassMark, the Pentium D 830 scores 618 against the Athlon 64 FX-51's 615 — a 0.5% lead for the Pentium D 830. Both processors carry 0 kB of L3 cache.
| Feature | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| Cores / Threads | 2 / 2+100% | 1 / 1 |
| Boost Clock | 3 GHz+36% | 2.2 GHz |
| Base Clock | 3 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 2 MB+100% | 1 MB |
| Process | 90 nm-31% | 130 nm |
| Architecture | NetBurst (2000−2006) | SledgeHammer (2003−2005) |
| PassMark | 618 | 615 |
| Geekbench 6 Single | 151 | — |
| Geekbench 6 Multi | 341 | — |
Memory & Platform
The Pentium D 830 uses the LGA775 socket (PCIe 1.1), while the Athlon 64 FX-51 uses 940 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Pentium D 830 versus DDR-400 on the Athlon 64 FX-51 — 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: 16 (Pentium D 830) vs 0 (Athlon 64 FX-51) — the Pentium D 830 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 945,955,975 (Pentium D 830) and AMD 940 (Athlon 64 FX-51).
| Feature | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| Socket | LGA775 | 940 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR2-667 | DDR-400 |
| Max RAM Capacity | 4 GB | 4 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Virtualization: None (Pentium D 830) / not specified (Athlon 64 FX-51). Primary use case: Pentium D 830 targets Legacy Desktop.
| Feature | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | None | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Pentium D 830 launched at $316 MSRP, while the Athlon 64 FX-51 debuted at $733. At current prices ($20 vs $733), the Pentium D 830 is $713 cheaper. In terms of value (PassMark points per dollar), the Pentium D 830 delivers 30.9 pts/$ vs 0.8 pts/$ for the Athlon 64 FX-51 — making the Pentium D 830 the 189.4% better value option.
| Feature | Pentium D 830 | Athlon 64 FX-51 |
|---|---|---|
| MSRP | $316-57% | $733 |
| Avg Price (30d) | $20-97% | $733 |
| Performance per Dollar | 30.9+3762% | 0.8 |
| Release Date | 2005 | 2003 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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