
Phenom II X2 B57

Pentium J2900
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 Phenom II X2 B57 is positioned at rank 484 and the Pentium J2900 is on rank 1013, so the Phenom II X2 B57 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom II X2 B57
Performance Per Dollar Pentium J2900
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X2 B57 | Pentium J2900 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($20) |
| Longevity | 🛑 Legacy (Callisto (2009−2010) / 45 nm) | 🛑 Legacy (Bay Trail-D (2013) / 22 nm) |
💎 Value Proposition
| Insight | Phenom II X2 B57 | Pentium J2900 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($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 Phenom II X2 B57 and Pentium J2900

Phenom II X2 B57
The Phenom II X2 B57 is manufactured by AMD. It was released in 2009-01-01. It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,260 points. Launch price was $149.

Pentium J2900
The Pentium J2900 is manufactured by Intel. It was released in 1 November 2013 (12 years ago). It is based on the Bay Trail-D (2013) architecture. It features 4 cores and 4 threads. Base frequency is 2.41 GHz, with boost up to 2.66 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,254 points. Launch price was $94.
Processing Power
The Phenom II X2 B57 packs 2 cores / 2 threads, while the Pentium J2900 offers 4 cores / 4 threads — the Pentium J2900 has 2 more cores. Boost clocks reach 3.2 GHz on the Phenom II X2 B57 versus 2.66 GHz on the Pentium J2900 — a 18.4% clock advantage for the Phenom II X2 B57 (base: 3.2 GHz vs 2.41 GHz). The Phenom II X2 B57 uses the Callisto (2009−2010) architecture (45 nm), while the Pentium J2900 uses Bay Trail-D (2013) (22 nm). In PassMark, the Phenom II X2 B57 scores 1,260 against the Pentium J2900's 1,254 — a 0.5% lead for the Phenom II X2 B57. L3 cache: 6 MB (total) on the Phenom II X2 B57 vs 2 MB L2 Cache on the Pentium J2900.
| Feature | Phenom II X2 B57 | Pentium J2900 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 3.2 GHz+20% | 2.66 GHz |
| Base Clock | 3.2 GHz+33% | 2.41 GHz |
| L3 Cache | 6 MB (total)+200% | 2 MB L2 Cache |
| L2 Cache | 512 kB (per core) | 2 MB+300% |
| Process | 45 nm | 22 nm-51% |
| Architecture | Callisto (2009−2010) | Bay Trail-D (2013) |
| PassMark | 1,260 | 1,254 |
Memory & Platform
The Phenom II X2 B57 uses the AM3 socket (PCIe 2.0), while the Pentium J2900 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X2 B57 | Pentium J2900 |
|---|---|---|
| Socket | AM3 | FCBGA1170 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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