Core i9-9900T vs Xeon E5-1660 v4
Core i9-9900T
Xeon E5-1660 v4
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 i9-9900T
Performance Per Dollar Xeon E5-1660 v4
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-9900T | Xeon E5-1660 v4 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($215) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) | 🛑 Legacy (Broadwell-EP (2016) / 14 nm) |
💎 Value Proposition
| Insight | Core i9-9900T | Xeon E5-1660 v4 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($215) | ✅ 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 i9-9900T and Xeon E5-1660 v4
Core i9-9900T
The Core i9-9900T is manufactured by Intel. It was released in 23 April 2019 (6 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 4.4 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 13,208 points. Launch price was $439.
Xeon E5-1660 v4
The Xeon E5-1660 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell-EP (2016) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 3.8 GHz. L3 cache: 20 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400. Passmark benchmark score: 13,341 points. Launch price was $1,113.
Processing Power
Both the Core i9-9900T and Xeon E5-1660 v4 share an identical 8-core/16-thread configuration. Boost clocks reach 4.4 GHz on the Core i9-9900T versus 3.8 GHz on the Xeon E5-1660 v4 — a 14.6% clock advantage for the Core i9-9900T (base: 2.1 GHz vs 3.2 GHz). The Core i9-9900T uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Xeon E5-1660 v4 uses Broadwell-EP (2016) (14 nm). In PassMark, the Core i9-9900T scores 13,208 against the Xeon E5-1660 v4's 13,341 — a 1% lead for the Xeon E5-1660 v4. L3 cache: 16 MB (total) on the Core i9-9900T vs 20 MB (total) on the Xeon E5-1660 v4.
| Feature | Core i9-9900T | Xeon E5-1660 v4 |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.4 GHz+16% | 3.8 GHz |
| Base Clock | 2.1 GHz | 3.2 GHz+52% |
| L3 Cache | 16 MB (total) | 20 MB (total)+25% |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake-R (2018−2019) | Broadwell-EP (2016) |
| PassMark | 13,208 | 13,341+1% |
Memory & Platform
The Core i9-9900T uses the LGA1151 socket (PCIe 3.0), while the Xeon E5-1660 v4 uses LGA2011 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i9-9900T | Xeon E5-1660 v4 |
|---|---|---|
| Socket | LGA1151 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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