Intel Core Ultra 7 355 VS AMD Ryzen 5 8640U
We are comparing the Intel Core Ultra 7 355 (Intel) with the AMD Ryzen 5 8640U (AMD). Scroll down to the pros and cons of each processor, in-depth specs, and benchmark comparisons.
Overall Comparison
KEY DIFFERENCES OF Intel Core Ultra 7 355 AND AMD Ryzen 5 8640U
Here’s how Intel Core Ultra 7 355 and AMD Ryzen 5 8640U stack up against each other in their most impactful areas.
Reasons to consider the Intel Core Ultra 7 355
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33% more CPU cores (8 vs 6)
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9% higher Geekbench V6 multi-core score (11252 vs 10308)
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8% higher Geekbench V6 single-core score (2724 vs 2519)
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16% higher PassMark single-core score (3993 vs 3453)
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50% smaller manufacturing process (2 nm vs 4 nm)
Reasons to consider the AMD Ryzen 5 8640U
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50% more CPU threads (12 vs 8)
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4% higher P-core turbo frequency (4900 MHz vs 4700 MHz)
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200% more performance-core threads (12 vs 4)
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50% more performance cores (6 vs 4)
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52% higher P-core base frequency (3500 MHz vs 2300 MHz)
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Includes dedicated NPU acceleration
SPECIFICATION TABLE COMPARISON OF Intel Core Ultra 7 355 AND AMD Ryzen 5 8640U
Below is the detailed specification table comparing Intel Core Ultra 7 355 and AMD Ryzen 5 8640U.
Note: Highlighted specs mean that CPU wins that spec row.
If neither side is highlighted, it is a tie or there is not enough data for both specs.
| Specification | Intel Core Ultra 7 355 | AMD Ryzen 5 8640U |
|---|---|---|
|
General Information
|
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| CPU Name: | Intel Core Ultra 7 355 | AMD Ryzen 5 8640U |
| Vendor: | Intel | AMD |
| Release Date: | January 5, 2026 | December 6, 2023 |
| Type: | Laptop | Laptop |
| Instruction Set: | x86-64 | x86-64 |
| Codename: | Panther Lake | Zen 4 (Hawk Point) |
|
Package and Thermals
|
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| Manufacturing Process: | 2 nm | 4 nm |
| Transistor Count: | — | 25 billion |
| TDP (PL1): | 15-25 W | 15-30 W |
| Max Boost TDP (PL2): | 55 W | — |
| Socket: | FCBGA2540 | FP8 |
| Max Temp (TJMax): | 100 C | 100 C |
|
CPU Cores
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Total Cores
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| Total Cores | 8 | 6 |
| Total Threads | 8 | 12 |
|
P-Cores
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| P-Cores | 4 | 6 |
| P-Threads | 4 | 12 |
| P-Core Base Frequency | 2300 MHz | 3500 MHz |
| P-Core Turbo Frequency | 4700 MHz | 4900 MHz |
|
E-Cores
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| E-Cores | 4 | — |
| E-Threads | 4 | — |
| E-Core Base Frequency | 1700 MHz | — |
| E-Core Turbo Frequency | 3500 MHz | — |
|
NPU
|
||
| NPU |
|
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Cache and Bus
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| Multiplier | Locked | Locked |
| Bus Frequency | 100 MHz | 100 MHz |
| L1 Cache | — | 64 KB |
| L2 Cache | — | 1 MB |
| L3 Cache | 12 MB | 16 MB |
|
Memory Support
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| Memory Types: | LPDDR5X-7467, DDR5-6400 | DDR5-5600, LPDDR5x-7500 |
| Max Memory Size: | 128 GB | 256 GB |
| Memory Channels: | 2 | 2 |
| ECC Support: |
|
|
| Technologies: | N/A | AVX-512, BMI1, BMI2, F16C, SHA, XDNA2, Precision Boost 2, SMT, AMD-V, EVP, NX-Bit, SMAP, SMEP |
|
Benchmarks
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Geekbench V6
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| Multi-Core | 11252 | 10308 |
| Single-Core | 2724 | 2519 |
| File Compression | 1050 | 1080 |
| Clang Compression | 75 | 71 |
| HTML5 Browser | 264 | 227 |
| PDF Renderer | 294 | 261 |
| Text Processing | 293 | 260 |
| Background Blur | 50 | 48 |
| Photo Processing | 122 | 95 |
| Ray Tracing | 15 | 16 |
|
PassMark CPU
|
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| Multi-Core | 20128 | 19961 |
| Single-Core | 3993 | 3453 |
| Integer Math | 43500 | 66300 |
| Floating Point | 59200 | 39500 |
| Prime Numbers | 183 | 69 |
| String Sorting | 23900 | 27600 |
| Data Encryption | 14800 | 13700 |
| Data Compression | 176800 | 226400 |
| Physics | 1885 | 1015 |
| Extended Instructions | 17900 | 16300 |
|
Cinebench 2024
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| Multi-Core | 801 | 611 |
| Single-Core | 113 | 103 |
Tip: ▲ indicates a higher-is-better spec advantage, while ▼ indicates a lower-is-better advantage.
PERFORMANCE CHART COMPARISON OF Intel Core Ultra 7 355 AND AMD Ryzen 5 8640U
The charts below visualize how Intel Core Ultra 7 355 and AMD Ryzen 5 8640U stack up in key performance metrics.
Performance Radar Chart
Performance Benchmarks
Release Timeline of Intel Core Ultra 7 355 and AMD Ryzen 5 8640U
AMD Ryzen 5 8640U was released 2 years, 30 days earlier than Intel Core Ultra 7 355.
Value For Money Calculator
Prices use available launch or current data. Enter your own prices to see which CPU gives better value.
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Domain Score Summary
Scores are generated by Comparigon's scoring algorithm and are intended as a high-level guide. They may not map 1-to-1 with the individual spec-by-spec comparisons shown in the table.
Our Verdict
In conclusion, the Intel Core Ultra 7 355 has a narrow overall lead compared to the AMD Ryzen 5 8640U. Its strongest advantages are in Single-Core Performance, Multi-Core Performance and Energy Efficiency. The AMD Ryzen 5 8640U is the better fit if your top priority is CPU Architecture and Memory Architecture.
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Disclaimer: Specs, pricing, and benchmarks are sourced from official manufacturer data and verified test results. While we strive for precision, product details and pricing may change. Comparigon may earn an affiliate commission on qualifying purchases.