Core i3-10305 vs Xeon E3-1275 v6
Core i3-10305
Xeon E3-1275 v6
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i3-10305
Performance Per Dollar Xeon E3-1275 v6
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($100) | ⚠️ Higher cost ($142) |
| Longevity | ✨ Modern (Comet Lake-R (2021) / 14 nm) | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+42%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($100) | ⚠️ Higher cost ($142) |
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 Core i3-10305 and Xeon E3-1275 v6
Core i3-10305
The Core i3-10305 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 9,210 points. Launch price was $149.
Xeon E3-1275 v6
The Xeon E3-1275 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 73 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 9,202 points. Launch price was $339.
Processing Power
Both the Core i3-10305 and Xeon E3-1275 v6 share an identical 4-core/8-thread configuration. Boost clocks reach 4.5 GHz on the Core i3-10305 versus 4.2 GHz on the Xeon E3-1275 v6 — a 6.9% clock advantage for the Core i3-10305 (base: 3.8 GHz vs 3.8 GHz). The Core i3-10305 uses the Comet Lake-R (2021) architecture (14 nm), while the Xeon E3-1275 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i3-10305 scores 9,210 against the Xeon E3-1275 v6's 9,202 — a 0.1% lead for the Core i3-10305. L3 cache: 8 MB (total) on the Core i3-10305 vs 8 MB on the Xeon E3-1275 v6.
| Feature | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 4.5 GHz+7% | 4.2 GHz |
| Base Clock | 3.8 GHz | 3.8 GHz |
| L3 Cache | 8 MB (total) | 8 MB |
| L2 Cache | 256 kB (per core) | 1 MB+300% |
| Process | 14 nm | 14 nm |
| Architecture | Comet Lake-R (2021) | Kaby Lake (2016−2019) |
| PassMark | 9,210 | 9,202 |
| Geekbench 6 Single | 1,536 | — |
Memory & Platform
The Core i3-10305 uses the LGA1200 socket (PCIe 3.0), while the Xeon E3-1275 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| Socket | LGA1200 | LGA1151 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i3-10305) / not specified (Xeon E3-1275 v6). The Core i3-10305 includes integrated graphics (UHD Graphics 630), while the Xeon E3-1275 v6 requires a dedicated GPU.
| Feature | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 630 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
Value Analysis
The Core i3-10305 launched at $149 MSRP, while the Xeon E3-1275 v6 debuted at $499. At current prices ($100 vs $142), the Core i3-10305 is $42 cheaper. In terms of value (PassMark points per dollar), the Core i3-10305 delivers 92.1 pts/$ vs 64.8 pts/$ for the Xeon E3-1275 v6 — making the Core i3-10305 the 34.8% better value option.
| Feature | Core i3-10305 | Xeon E3-1275 v6 |
|---|---|---|
| MSRP | $149-70% | $499 |
| Avg Price (30d) | $100-30% | $142 |
| Performance per Dollar | 92.1+42% | 64.8 |
| Release Date | 2021 | 2017 |
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