Intel Core Ultra 9 285K VS Intel Core Ultra 9 290HX Plus
We are comparing the Intel Core Ultra 9 285K (Intel) with the Intel Core Ultra 9 290HX Plus (Intel). Scroll down to the pros and cons of each processor, in-depth specs, and benchmark comparisons.
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.
Reasons to consider the Intel Core Ultra 9 285K
-
37% higher P-core base frequency (3700 MHz vs 2700 MHz)
-
78% higher E-core base frequency (3200 MHz vs 1800 MHz)
-
Includes dedicated NPU acceleration
-
Supports ECC memory
Reasons to consider the Intel Core Ultra 9 290HX Plus
-
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
|
||
| 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
|
||
| 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 |
|
CPU Cores
|
||
|
Total Cores
|
||
| Total Cores | 24 | 24 |
| Total Threads | 24 | 24 |
|
P-Cores
|
||
| 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
|
||
| 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
|
||
| NPU |
|
|
| NPU TOPS | 13 TOPS | — |
|
Cache and Bus
|
||
| 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
|
||
| 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: |
|
|
| 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
|
||
|
Geekbench V6
|
||
| 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
|
||
| Multi-Core | — | 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
|
||
| 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
Prices use available launch or current data. Enter your own prices to see which CPU gives better value.
Intel Core Ultra 9 285K
Intel Core Ultra 9 290HX Plus
Calculating...
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 9 285K edges out overall compared to the Intel Core Ultra 9 290HX Plus. Its strongest advantages are in Single-Core Performance and CPU Architecture. They are still fairly close in Multi-Core Performance and Memory Architecture.
Try to Compare Again One of These CPUs With Another CPU
Pick which CPU to keep, then search for the other CPU to compare.
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.