# 7990 vs 2x 290? (I don't pay for power got a 1300W psu)

**URL:** <https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034>\
**Category:** Mining\
**Created:** [January 31, 2017, 5:11pm UTC](https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034 "2017-01-31T17:11:44Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![samosnik](https://avatars.discourse-cdn.com/v4/letter/s/a87d85/32.png) [@samosnik](https://forum.zcashcommunity.com/u/samosnik)\
**Post date:** [January 31, 2017, 5:11pm UTC](https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034/1 "2017-01-31T17:11:45Z")

</div>

Found a 7990 and 2x 290 for the same price 250$ which one would give the most sol/s?  
I have goolged a bit. But all the answers are outdated.

---

<div class="post-metadata">

**Author:** ![BoXyUK](https://avatars.discourse-cdn.com/v4/letter/b/ec9cab/32.png) [@BoXyUK](https://forum.zcashcommunity.com/u/BoXyUK)\
**Post date:** [January 31, 2017, 6:47pm UTC](https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034/2 "2017-01-31T18:47:34Z")

</div>

With my 7990 I get just over 500 H/s, but I have dropped the speed a touch to keep it cooler.  
Sorry, I cant comment on a 290.

---

<div class="post-metadata">

**Author:** ![R0x0r](https://avatars.discourse-cdn.com/v4/letter/r/a587f6/32.png) [@R0x0r](https://forum.zcashcommunity.com/u/R0x0r)\
**Post date:** [January 31, 2017, 8:11pm UTC](https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034/3 "2017-01-31T20:11:12Z")

</div>

Which miner and what config for the 7990?

---

<div class="post-metadata">

**Author:** ![BoXyUK](https://avatars.discourse-cdn.com/v4/letter/b/ec9cab/32.png) [@BoXyUK](https://forum.zcashcommunity.com/u/BoXyUK)\
**Post date:** [January 31, 2017, 9:03pm UTC](https://forum.zcashcommunity.com/t/7990-vs-2x-290-i-dont-pay-for-power-got-a-1300w-psu/14034/4 "2017-01-31T21:03:03Z")

</div>

Windows 10  
Claymore 11.1  
-i 4  
Core Voltage 1100 mV  
Core Clock 910 MHz  
Memory Clock 1500

This gives me 82C and a fan speed of around 60%