
Core i3-10305T vs Xeon E3-1585 v5

Core i3-10305T

Xeon E3-1585 v5
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 i3-10305T
Performance Per Dollar Xeon E3-1585 v5
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-10305T | Xeon E3-1585 v5 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($143) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Comet Lake-R (2021) / 14 nm) | 🛑 Legacy (Skylake-H (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Core i3-10305T | Xeon E3-1585 v5 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($143) | ✅ 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 Core i3-10305T and Xeon E3-1585 v5

Core i3-10305T
The Core i3-10305T 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 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 8,512 points. Launch price was $143.

Xeon E3-1585 v5
The Xeon E3-1585 v5 is manufactured by Intel. It was released in 31 May 2016 (9 years ago). It is based on the Skylake-H (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 65 Watt. Memory support: DDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2V. Passmark benchmark score: 8,408 points. Launch price was $556.
Processing Power
Both the Core i3-10305T and Xeon E3-1585 v5 share an identical 4-core/8-thread configuration. Boost clocks reach 4 GHz on the Core i3-10305T versus 3.9 GHz on the Xeon E3-1585 v5 — a 2.5% clock advantage for the Core i3-10305T (base: 3 GHz vs 3.5 GHz). The Core i3-10305T uses the Comet Lake-R (2021) architecture (14 nm), while the Xeon E3-1585 v5 uses Skylake-H (2015−2016) (14 nm). In PassMark, the Core i3-10305T scores 8,512 against the Xeon E3-1585 v5's 8,408 — a 1.2% lead for the Core i3-10305T. Both processors carry 8 MB (total) of L3 cache.
| Feature | Core i3-10305T | Xeon E3-1585 v5 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 4 GHz+3% | 3.9 GHz |
| Base Clock | 3 GHz | 3.5 GHz+17% |
| L3 Cache | 8 MB (total) | 8 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Comet Lake-R (2021) | Skylake-H (2015−2016) |
| PassMark | 8,512+1% | 8,408 |
Memory & Platform
The Core i3-10305T uses the LGA1200 socket (PCIe 3.0), while the Xeon E3-1585 v5 uses BGA1440 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Core i3-10305T | Xeon E3-1585 v5 |
|---|---|---|
| Socket | LGA1200 | BGA1440 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
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