Xeon E5-2643 vs Core i3-8100T
Xeon E5-2643
Core i3-8100T
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. The Xeon E5-2643 is positioned at rank #1009 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Xeon E5-2643
Performance Per Dollar Core i3-8100T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($50) | ⚠️ Higher cost ($59) |
| Longevity | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+17%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($50) | ⚠️ Higher cost ($59) |
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 Xeon E5-2643 and Core i3-8100T
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.
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.
Processing Power
The Xeon E5-2643 packs 4 cores / 8 threads, matching the Core i3-8100T's 4 cores. Boost clocks reach 3.5 GHz on the Xeon E5-2643 versus 3.1 GHz on the Core i3-8100T — a 12.1% clock advantage for the Xeon E5-2643 (base: 3.3 GHz vs 3.1 GHz). The Xeon E5-2643 uses the Sandy Bridge-EP (2012) architecture (32 nm), while the Core i3-8100T uses Coffee Lake (2017−2019) (14 nm). In PassMark, the Xeon E5-2643 scores 5,228 against the Core i3-8100T's 5,257 — a 0.6% lead for the Core i3-8100T. L3 cache: 10240 kB (total) on the Xeon E5-2643 vs 6 MB (total) on the Core i3-8100T.
| Feature | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 4 |
| Boost Clock | 3.5 GHz+13% | 3.1 GHz |
| Base Clock | 3.3 GHz+6% | 3.1 GHz |
| L3 Cache | 10240 kB (total)+67% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 256K (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Sandy Bridge-EP (2012) | Coffee Lake (2017−2019) |
| PassMark | 5,228 | 5,257 |
Memory & Platform
The Xeon E5-2643 uses the LGA2011 socket (PCIe 5.0), while the Core i3-8100T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| Socket | LGA2011 | LGA1151 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2400 |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Xeon E5-2643) / VT-x, VT-d (Core i3-8100T). 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 | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | UHD Graphics 630 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Desktop |
Value Analysis
The Xeon E5-2643 launched at $1552 MSRP, while the Core i3-8100T debuted at $117. At current prices ($50 vs $59), the Xeon E5-2643 is $9 cheaper. In terms of value (PassMark points per dollar), the Xeon E5-2643 delivers 104.6 pts/$ vs 89.1 pts/$ for the Core i3-8100T — making the Xeon E5-2643 the 16% better value option.
| Feature | Xeon E5-2643 | Core i3-8100T |
|---|---|---|
| MSRP | $1552 | $117-92% |
| Avg Price (30d) | $50-15% | $59 |
| Performance per Dollar | 104.6+17% | 89.1 |
| Release Date | 2012 | 2018 |
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