Antminer S21 XP 270T - First Impressions
Announced in June 2024, first batch of Antminer S21 XP 270T was released last week. We just got our first units, so lets take a closer look at the device 🔍👀
Announced in June 2024, first batch of Antminer S21 XP 270T was released last week. We just got our first units, so lets take a closer look at the device 🔍👀
Packaging
Antminer S21 XP came in packaging identical to S21 Pro. Both the miners have the same gross weight of about 47 lbs. And just like S21 Pro, the S21 XP came with a C20-P13 power cable in the box.
Antminer S21 XP came in packaging identical to S21 Pro. Both the miners have the same gross weight of about 47 lbs. And just like S21 Pro, the S21 XP came with a C20-P13 power cable in the box.
Size & Appearance
S21 XP is identical in dimensions to S21 Pro. It has 140mm fans and APW171215a PSU. One notable difference is the presence of a small LED display on the control board panel.
S21 XP is identical in dimensions to S21 Pro. It has 140mm fans and APW171215a PSU. One notable difference is the presence of a small LED display on the control board panel.
Performance
273T| 3684 W| 13.49 J/T
Freq: 490 Mhz
Core Voltage: 13.83V
Intake Air Temp: 75F
S21 XP's real world efficiency of 13.49 J/T meets expectations. It's ~12% better than efficiency on S21 Pro.
Notice the fans are running at 60%, indicating room for overclocking
273T| 3684 W| 13.49 J/T
Freq: 490 Mhz
Core Voltage: 13.83V
Intake Air Temp: 75F
S21 XP's real world efficiency of 13.49 J/T meets expectations. It's ~12% better than efficiency on S21 Pro.
Notice the fans are running at 60%, indicating room for overclocking
Chips
💡Notice that S21 XP has 91 chips per hashboard, which is much higher than 65 chips on S21 Pro hashboard. However each chip is hashing at ~1 Th which is about 20% lower than per chip hashrate on S21 Pro. Are these BM1370 chips running more efficiently at lower clock freq?
💡Notice that S21 XP has 91 chips per hashboard, which is much higher than 65 chips on S21 Pro hashboard. However each chip is hashing at ~1 Th which is about 20% lower than per chip hashrate on S21 Pro. Are these BM1370 chips running more efficiently at lower clock freq?
Control Board & Display
This S21 XP has a Amlogic A113D control board, very similar to the control board on S21 Pro. One notable difference is the presence of detachable 0.91" I2C OLED display. As Bitaxe fans, we'll put this in the 'imitation is flattery' column @skot9000!
This S21 XP has a Amlogic A113D control board, very similar to the control board on S21 Pro. One notable difference is the presence of detachable 0.91" I2C OLED display. As Bitaxe fans, we'll put this in the 'imitation is flattery' column @skot9000!
Hashboards
Antminer S21 XP hashboards are fairly similar to S21 Pro and S21. They are aluminum backed with pastel blue thermal compound and integrated bolt on heatsinks.
Antminer S21 XP hashboards are fairly similar to S21 Pro and S21. They are aluminum backed with pastel blue thermal compound and integrated bolt on heatsinks.
Hashboard Power Delivery
There are some peculiar difference in power delivery on S21 XP hashboards. What used to be thick traces on the printed circuit board for previous antminers, now appear to be tinned copper bus bars, that are partly detached from the PCB. Any guesses on the motivation behind this design change?🤔
There are some peculiar difference in power delivery on S21 XP hashboards. What used to be thick traces on the printed circuit board for previous antminers, now appear to be tinned copper bus bars, that are partly detached from the PCB. Any guesses on the motivation behind this design change?🤔
Conclusion
Antminer S21 XP meets advertised efficiency of 13.5J/T in real world performance. Bitmain is sticking with its wider body design, 140mm cooling fans and the addition of LED display is a nice touch.
Antminer S21 XP meets advertised efficiency of 13.5J/T in real world performance. Bitmain is sticking with its wider body design, 140mm cooling fans and the addition of LED display is a nice touch.
Competitive Landscape
With S21 XP @BITMAINtech has improved mining efficiency by a massive 37% YoY (compared with S19 XP). This further extends its leadership position in the industry. The bar is now set higher for competitors like Bitdeer, Block, Auradine & MicroBT.
With S21 XP @BITMAINtech has improved mining efficiency by a massive 37% YoY (compared with S19 XP). This further extends its leadership position in the industry. The bar is now set higher for competitors like Bitdeer, Block, Auradine & MicroBT.
Availability
This review unit was a part of a small early release batch from Bitmain. Volume release is expected in 1st week of October.
We ship worldwide from our Missouri USA location. and you can purchase Antminer S21 XP from us here:
🛒altairtech.io/product/bitmai…
This review unit was a part of a small early release batch from Bitmain. Volume release is expected in 1st week of October.
We ship worldwide from our Missouri USA location. and you can purchase Antminer S21 XP from us here:
🛒altairtech.io/product/bitmai…
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