
Pentium E6800 vs Phenom X3 8400

Pentium E6800

Phenom X3 8400
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 E6800 is positioned at rank 932 and the Phenom X3 8400 is on rank 509, so the Phenom X3 8400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium E6800
Performance Per Dollar Phenom X3 8400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium E6800 | Phenom X3 8400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Wolfdale (2008−2010) / 45 nm) | 🛑 Legacy (Toliman (2008) / 65 nm) |
💎 Value Proposition
| Insight | Pentium E6800 | Phenom X3 8400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
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 E6800 and Phenom X3 8400

Pentium E6800
The Pentium E6800 is manufactured by Intel. It was released in 29 August 2010 (15 years ago). It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.33 GHz, with boost up to 0.33 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,155 points. Launch price was $831.

Phenom X3 8400
The Phenom X3 8400 is manufactured by AMD. It was released in 2009-01-01. It is based on the Toliman (2008) architecture. It features 3 cores and 3 threads. Max frequency: 2.1 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,164 points. Launch price was $149.
Processing Power
The Pentium E6800 packs 2 cores / 2 threads, while the Phenom X3 8400 offers 3 cores / 3 threads — the Phenom X3 8400 has 1 more core. Boost clocks reach 0.33 GHz on the Pentium E6800 versus 2.1 GHz on the Phenom X3 8400 — a 145.7% clock advantage for the Phenom X3 8400. The Pentium E6800 uses the Wolfdale (2008−2010) architecture (45 nm), while the Phenom X3 8400 uses Toliman (2008) (65 nm). In PassMark, the Pentium E6800 scores 1,155 against the Phenom X3 8400's 1,164 — a 0.8% lead for the Phenom X3 8400. L3 cache: 0 kB on the Pentium E6800 vs 2 MB (total) on the Phenom X3 8400.
| Feature | Pentium E6800 | Phenom X3 8400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 3 / 3+50% |
| Boost Clock | 0.33 GHz | 2.1 GHz+536% |
| Base Clock | 3.33 GHz | — |
| L3 Cache | 0 kB | 2 MB (total) |
| L2 Cache | 2 MB (total)+300% | 512 kB (per core) |
| Process | 45 nm-31% | 65 nm |
| Architecture | Wolfdale (2008−2010) | Toliman (2008) |
| PassMark | 1,155 | 1,164 |
Memory & Platform
The Pentium E6800 uses the LGA775 socket (PCIe 1.1), while the Phenom X3 8400 uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium E6800 | Phenom X3 8400 |
|---|---|---|
| Socket | LGA775 | AM2+ |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
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