Intel Core Ultra 9 285K VS Intel Core Ultra 9 290HX Plus
We are comparing the Intel Core Ultra 9 285K ( Intel ) head-to-head with the Intel Core Ultra 9 290HX Plus ( Intel ) . You will get the key pros and cons of each processor, in-depth specs, and benchmark comparisons.
Note: This comparison of Intel Core Ultra 9 285K vs. Intel Core Ultra 9 290HX Plus is based on Comparigon's analysis and is for informational purposes only.
Overall Comparison
KEY DIFFERENCES OF Intel Core Ultra 9 285K AND Intel Core Ultra 9 290HX Plus
Here’s how Intel Core Ultra 9 285K and Intel Core Ultra 9 290HX Plus stack up against each other in their most impactful areas. Use these bullets to quickly see where each CPU leads.
Reasons to consider the Intel Core Ultra 9 285K
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37% higher P-core base frequency (3700 MHz vs 2700 MHz)
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78% higher E-core base frequency (3200 MHz vs 1800 MHz)
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Includes dedicated NPU acceleration
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Supports ECC memory
Reasons to consider the Intel Core Ultra 9 290HX Plus
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2% higher E-core turbo frequency (4700 MHz vs 4600 MHz)
SPECIFICATION TABLE COMPARISON OF Intel Core Ultra 9 285K AND Intel Core Ultra 9 290HX Plus
Below is the detailed specification table comparing Intel Core Ultra 9 285K and Intel Core Ultra 9 290HX Plus.
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 9 285K | Intel Core Ultra 9 290HX Plus |
|---|---|---|
|
General Information
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| CPU Name: | Intel Core Ultra 9 285K | Intel Core Ultra 9 290HX Plus |
| Vendor: | Intel | Intel |
| Release Date: | October 24, 2024 | January 17, 2026 |
| Generation: | Ultra 9 (Arrow Lake) | — |
| Type: | Desktop | Laptop |
| Instruction Set: | — | x86-64 |
| Codename: | Arrow Lake-S | Arrow Lake |
| Foundry: | TSMC | — |
|
Package and Thermals
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| Manufacturing Process: | 3 nm | 3 nm |
| Die Size: | 243 mm² | — |
| Transistor Count: | 17.8 billion | — |
| TDP (PL1): | 250 W | 45-55 W |
| Max Boost TDP (PL2): | 250 W | 160 W |
| Socket: | FCLGA1851 | FCBGA-2114 |
| Max Temp (TJMax): | 105 C | 105 C |
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CPU Cores
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Total Cores
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| Total Cores | 24 | 24 |
| Total Threads | 24 | 24 |
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P-Cores
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| P-Cores | 8 | 8 |
| P-Threads | 8 | 8 |
| P-Core Base Frequency | 3700 MHz | 2700 MHz |
| P-Core Turbo Frequency | 5500 MHz | 5500 MHz |
|
E-Cores
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| E-Cores | 16 | 16 |
| E-Threads | 16 | 16 |
| E-Core Base Frequency | 3200 MHz | 1800 MHz |
| E-Core Turbo Frequency | 4600 MHz | 4700 MHz |
|
NPU
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| NPU |
|
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| NPU TOPS | 13 TOPS | — |
|
Cache and Bus
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| Multiplier | Unlocked | Unlocked |
| Bus Frequency | 100 MHz | 100 MHz |
| L1 Cache | 192 KB | 192 KB |
| L2 Cache | 3 MB | 3 MB |
| L3 Cache | 36 MB | 36 MB |
|
Memory Support
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| Memory Types: | DDR5-6400 | DDR5-6400 |
| Max Memory Size: | 256 GB | 256 GB |
| Memory Channels: | 2 | 2 |
| Max Memory Bandwidth: | 102.4 GB/s | — |
| ECC Support: |
|
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| Technologies: | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-VNNI, FMA3, SHA, VT-x, VT-d, AES-NI, TXT, TDT, Thread Director, AI Boost 3.0, DLBoost 3.0, TBT 2.0, TBMT 3.0, TVB, vPro | N/A |
|
Benchmarks
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Geekbench V6
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| Multi-Core | — | 21581 |
| Single-Core | — | 3198 |
| File Compression | — | 1660 |
| Clang Compression | — | 217 |
| HTML5 Browser | — | 495 |
| PDF Renderer | — | 584 |
| Text Processing | — | 343 |
| Background Blur | — | 84 |
| Photo Processing | — | 160 |
| Ray Tracing | — | 46 |
|
PassMark CPU
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| CPU Mark | — | 66082 |
| Single-Core | — | 5010 |
| Integer Math | — | 171700 |
| Floating Point | — | 220900 |
| Prime Numbers | — | 585 |
| String Sorting | — | 93200 |
| Data Encryption | — | 56300 |
| Data Compression | — | 766800 |
| Physics | — | 3545 |
| Extended Instructions | — | 60600 |
|
Cinebench 2024
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| Multi-Core | — | 2219 |
| Single-Core | — | 126 |
Tip: ▲ indicates a higher-is-better spec advantage, while ▼ indicates a lower-is-better advantage.
PERFORMANCE CHART COMPARISON OF Intel Core Ultra 9 285K AND Intel Core Ultra 9 290HX Plus
The charts below visualize how Intel Core Ultra 9 285K and Intel Core Ultra 9 290HX Plus stack up in key performance metrics.
Performance Radar Chart
Performance Benchmarks
Release Timeline of Intel Core Ultra 9 285K and Intel Core Ultra 9 290HX Plus
Intel Core Ultra 9 285K was released 1 year, 2 months, 24 days earlier than Intel Core Ultra 9 290HX Plus.
Value For Money Calculator
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Domain Score Summary
Note: Scores (0 to 100) 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 9 290HX Plus is clearly better overall compared to the Intel Core Ultra 9 285K. Its strongest advantages are in Single-Core Performance, Multi-Core Performance, Memory Architecture and Energy Efficiency. The Intel Core Ultra 9 285K is the better fit if your top priority is CPU Architecture.
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