Core i5-8259U vs Core i3-10300T
Core i5-8259U
Core i3-10300T
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 Core i5-8259U is positioned at rank #209 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 Core i5-8259U
Performance Per Dollar Core i3-10300T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-8259U | Core i3-10300T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($100) |
| Longevity | ✨ Modern (Coffee Lake-U (2018−2019) / 14 nm) | ✨ Modern (Legacy / 14 nm) |
💎 Value Proposition
| Insight | Core i5-8259U | Core i3-10300T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($100) |
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 i5-8259U and Core i3-10300T
Core i5-8259U
The Core i5-8259U is manufactured by Intel. It was released in 5 April 2018 (7 years ago). It is based on the Coffee Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 7,843 points. Launch price was $320.
Core i3-10300T
The Core i3-10300T is manufactured by Intel. It was released in 1 April 2020 (5 years ago). It features 4 cores and 8 threads. Base frequency is 3 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 7,879 points. Launch price was $149.
Processing Power
Both the Core i5-8259U and Core i3-10300T share an identical 4-core/8-thread configuration. Boost clocks reach 3.8 GHz on the Core i5-8259U versus 3.9 GHz on the Core i3-10300T — a 2.6% clock advantage for the Core i3-10300T (base: 2.3 GHz vs 3 GHz). The Core i5-8259U is built on the Coffee Lake-U (2018−2019) architecture. In PassMark, the Core i5-8259U scores 7,843 against the Core i3-10300T's 7,879 — a 0.5% lead for the Core i3-10300T. L3 cache: 6 MB (total) on the Core i5-8259U vs 8 MB Intel® Smart Cache on the Core i3-10300T.
| Feature | Core i5-8259U | Core i3-10300T |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 3.8 GHz | 3.9 GHz+3% |
| Base Clock | 2.3 GHz | 3 GHz+30% |
| L3 Cache | 6 MB (total) | 8 MB Intel® Smart Cache+33% |
| L2 Cache | 256K (per core) | — |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake-U (2018−2019) | — |
| PassMark | 7,843 | 7,879 |
| Geekbench 6 Single | — | 1,313 |
| Geekbench 6 Multi | — | 4,090 |
Memory & Platform
The Core i5-8259U uses the FCBGA1528 socket (PCIe 3.0), while the Core i3-10300T uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-8259U | Core i3-10300T |
|---|---|---|
| Socket | FCBGA1528 | LGA1200 |
| 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: not specified (Core i5-8259U) / VT-x, VT-d (Core i3-10300T). The Core i3-10300T includes integrated graphics (UHD Graphics 630), while the Core i5-8259U requires a dedicated GPU.
| Feature | Core i5-8259U | Core i3-10300T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | UHD Graphics 630 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
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