Ryzen 3 4300U vs Core i5-8400T
Ryzen 3 4300U
Core i5-8400T
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 Ryzen 3 4300U is positioned at rank #457 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 Ryzen 3 4300U
Performance Per Dollar Core i5-8400T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 3 4300U | Core i5-8400T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($179) |
| Longevity | ✨ Modern (Renoir-U (Zen 2) (2020−2021) / 7 nm) | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 3 4300U | Core i5-8400T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($179) |
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 Ryzen 3 4300U and Core i5-8400T
Ryzen 3 4300U
The Ryzen 3 4300U is manufactured by AMD. It was released in 6 January 2020 (5 years ago). It is based on the Renoir-U (Zen 2) (2020−2021) architecture. It features 4 cores and 4 threads. Base frequency is 2.7 GHz, with boost up to 3.7 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: FP6. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 7,359 points. Launch price was $149.
Core i5-8400T
The Core i5-8400T 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 6 cores and 6 threads. Base frequency is 1.7 GHz, with boost up to 3.3 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 7,426 points. Launch price was $182.
Processing Power
The Ryzen 3 4300U packs 4 cores / 4 threads, while the Core i5-8400T offers 6 cores / 6 threads — the Core i5-8400T has 2 more cores. Boost clocks reach 3.7 GHz on the Ryzen 3 4300U versus 3.3 GHz on the Core i5-8400T — a 11.4% clock advantage for the Ryzen 3 4300U (base: 2.7 GHz vs 1.7 GHz). The Ryzen 3 4300U uses the Renoir-U (Zen 2) (2020−2021) architecture (7 nm), while the Core i5-8400T uses Coffee Lake (2017−2019) (14 nm). In PassMark, the Ryzen 3 4300U scores 7,359 against the Core i5-8400T's 7,426 — a 0.9% lead for the Core i5-8400T. L3 cache: 4 MB (total) on the Ryzen 3 4300U vs 9 MB (total) on the Core i5-8400T.
| Feature | Ryzen 3 4300U | Core i5-8400T |
|---|---|---|
| Cores / Threads | 4 / 4 | 6 / 6+50% |
| Boost Clock | 3.7 GHz+12% | 3.3 GHz |
| Base Clock | 2.7 GHz+59% | 1.7 GHz |
| L3 Cache | 4 MB (total) | 9 MB (total)+125% |
| L2 Cache | 512 kB (per core)+100% | 256K (per core) |
| Process | 7 nm-50% | 14 nm |
| Architecture | Renoir-U (Zen 2) (2020−2021) | Coffee Lake (2017−2019) |
| PassMark | 7,359 | 7,426 |
| Cinebench R23 Multi | — | 3,737 |
| Geekbench 6 Single | — | 1,092 |
| Geekbench 6 Multi | — | 3,816 |
Memory & Platform
The Ryzen 3 4300U uses the FP6 socket (PCIe 3.0), while the Core i5-8400T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 3 4300U | Core i5-8400T |
|---|---|---|
| Socket | FP6 | LGA1151 |
| 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 (Ryzen 3 4300U) / Yes (Core i5-8400T). The Core i5-8400T includes integrated graphics (UHD Graphics 630), while the Ryzen 3 4300U requires a dedicated GPU.
| Feature | Ryzen 3 4300U | Core i5-8400T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | UHD Graphics 630 |
| AVX-512 | — | No |
| Virtualization | — | Yes |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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