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AMD Athlon processors with Orion core can be identified by:
- Part number: part number starts with "AMD-K7" and ends with "3B A".
An example: AMD-K7900MNR53B A.
- CPU ID: Processors with the Orion core have CPU identification numbers 621 and 622.
| Athlon Orion core features |
| Introduction | March 6, 2000 |
| Previous core generation | Pluto |
| Next core generation | Thunderbird |
| Microprocessor families | Athlon (Slot A) |
| Manufacturing technology | 0.18 micron |
| Frequency | 900 MHz - 1000 MHz |
| Fastest processor | AMD-K7100MNR53B A |
| Front-side bus frequency | 200 MHz (100 MHz DDR) |
| L2 cache size | Backside 512 KB running at 1/3 of processor speed |
| Package | Card Module |
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