
U300

Xeon E5-2628 V3
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 U300 is positioned at rank 372 and the Xeon E5-2628 V3 is on rank 342, so the Xeon E5-2628 V3 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar U300
Performance Per Dollar Xeon E5-2628 V3
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | U300 | Xeon E5-2628 V3 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Legacy / Intel 7 nm) | 🛑 Legacy (Haswell-EP (2014−2015) / 22 nm) |
💎 Value Proposition
| Insight | U300 | Xeon E5-2628 V3 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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.

Path of Exile 2

Counter-Strike 2
Technical Specifications
Side-by-side comparison of U300 and Xeon E5-2628 V3

U300
The U300 is manufactured by Intel. It was released in 1 January 2023 (2 years ago). It features 5 cores and 6 threads. Max frequency: 4.4 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 55 Watt. Memory support: DDR5-5200, DDR4-3200, LPDDR4x-4267. Passmark benchmark score: 8,492 points. Launch price was $149.

Xeon E5-2628 V3
The Xeon E5-2628 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 8 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 3 GHz. L3 cache: 20 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 85 Watt. Memory support: DDR4-2133. Passmark benchmark score: 8,447 points. Launch price was $800.
Processing Power
The U300 packs 5 cores / 6 threads, while the Xeon E5-2628 V3 offers 8 cores / 16 threads — the Xeon E5-2628 V3 has 3 more cores. Boost clocks reach 4.4 GHz on the U300 versus 3 GHz on the Xeon E5-2628 V3 — a 37.8% clock advantage for the U300. The Xeon E5-2628 V3 is built on the Haswell-EP (2014−2015) architecture. In PassMark, the U300 scores 8,492 against the Xeon E5-2628 V3's 8,447 — a 0.5% lead for the U300. L3 cache: 8 MB Intel® Smart Cache on the U300 vs 20 MB (total) on the Xeon E5-2628 V3.
| Feature | U300 | Xeon E5-2628 V3 |
|---|---|---|
| Cores / Threads | 5 / 6 | 8 / 16+60% |
| Boost Clock | 4.4 GHz+47% | 3 GHz |
| Base Clock | — | 2.5 GHz |
| L3 Cache | 8 MB Intel® Smart Cache | 20 MB (total)+150% |
| L2 Cache | — | 256K (per core) |
| Process | Intel 7 nm-68% | 22 nm |
| Architecture | — | Haswell-EP (2014−2015) |
| PassMark | 8,492 | 8,447 |
Memory & Platform
The U300 uses the FCBGA1744 socket (PCIe 4.0), while the Xeon E5-2628 V3 uses LGA2011-3 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | U300 | Xeon E5-2628 V3 |
|---|---|---|
| Socket | FCBGA1744 | LGA2011-3 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
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