Core i3-8100T vs Xeon E5-2643
Core i3-8100T
Xeon E5-2643
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 i3-8100T
Performance Per Dollar Xeon E5-2643
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($59) | ✅ More affordable ($50) |
| Longevity | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) |
💎 Value Proposition
| Insight | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+17%) |
| Upfront Cost | ⚠️ Higher cost ($59) | ✅ More affordable ($50) |
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 i3-8100T and Xeon E5-2643
Core i3-8100T
The Core i3-8100T is manufactured by Intel. It was released in 2 April 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2400. Passmark benchmark score: 5,257 points. Launch price was $117.
Xeon E5-2643
The Xeon E5-2643 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.5 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 5,228 points. Launch price was $218.
Processing Power
The Core i3-8100T packs 4 cores / 4 threads, matching the Xeon E5-2643's 4 cores. Boost clocks reach 3.1 GHz on the Core i3-8100T versus 3.5 GHz on the Xeon E5-2643 — a 12.1% clock advantage for the Xeon E5-2643 (base: 3.1 GHz vs 3.3 GHz). The Core i3-8100T uses the Coffee Lake (2017−2019) architecture (14 nm), while the Xeon E5-2643 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Core i3-8100T scores 5,257 against the Xeon E5-2643's 5,228 — a 0.6% lead for the Core i3-8100T. L3 cache: 6 MB (total) on the Core i3-8100T vs 10240 kB (total) on the Xeon E5-2643.
| Feature | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 8 |
| Boost Clock | 3.1 GHz | 3.5 GHz+13% |
| Base Clock | 3.1 GHz | 3.3 GHz+6% |
| L3 Cache | 6 MB (total) | 10240 kB (total)+67% |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Coffee Lake (2017−2019) | Sandy Bridge-EP (2012) |
| PassMark | 5,257 | 5,228 |
Memory & Platform
The Core i3-8100T uses the LGA1151 socket (PCIe 3.0), while the Xeon E5-2643 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| Socket | LGA1151 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2400 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i3-8100T) / not specified (Xeon E5-2643). The Core i3-8100T includes integrated graphics (UHD Graphics 630), while the Xeon E5-2643 requires a dedicated GPU. Primary use case: Core i3-8100T targets Desktop.
| Feature | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 630 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Desktop | — |
Value Analysis
The Core i3-8100T launched at $117 MSRP, while the Xeon E5-2643 debuted at $1552. At current prices ($59 vs $50), the Xeon E5-2643 is $9 cheaper. In terms of value (PassMark points per dollar), the Core i3-8100T delivers 89.1 pts/$ vs 104.6 pts/$ for the Xeon E5-2643 — making the Xeon E5-2643 the 16% better value option.
| Feature | Core i3-8100T | Xeon E5-2643 |
|---|---|---|
| MSRP | $117-92% | $1552 |
| Avg Price (30d) | $59 | $50-15% |
| Performance per Dollar | 89.1 | 104.6+17% |
| Release Date | 2018 | 2012 |
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