The new AMD Radeon Cards

[TheMimic1]

AMD does not actually "lie" about the wattage. The power usage reported is only for the *GPU*. VRAM + other stuff is on top of that.

Nvidia gives (at least tries to) power usage for total board if I have understood correctly.

I have two NITRO+ AMD Radeon™ RX 6600 XT cards (11309-01-20G), testing now with NBMiner. After 2 hours no rejected/invalid shares so far.

Phoenix Miner 5.6d - Release build works also but gets lot of stale/invalid shares (for example during 11h46min 4314/460/155)

Driver 27.20.22023.1004 (non-whql-radeon-software-adrenalin-2020-21.8.1-win10-64bit-aug10)
W10P version 21H1 (19043.1165)

[17:23:14] INFO - ================ [nbminer v39.0] Summary 2021-08-15 17:23:14 ================
[17:23:14] INFO - |ID|Device|Hashrate|Accept|Reject|Inv|Powr|Temp|Fan|CClk|GMClk|MUtl|Eff/Watt|
[17:23:14] INFO - | 0|6600xt| 32.37 M|   386|     0|  0|  64|  63| 33|1311| 2238|  45| 505.8 K|
[17:23:14] INFO - | 1|6600xt| 32.38 M|   385|     0|  0|  62|  51| 33|1308| 2238|  45| 522.2 K|
[17:23:14] INFO - |------------------+------+------+---+----+---------------------------------|
[17:23:14] INFO - |    Total: 64.75 M|   771|     0|  0| 126| Uptime:  0D 02:12:01   CPU:  7% |

This two card rig has total power from the wall about 210W. (85+ PSU, 230V)

Rig without cards consumes about 35W on idle desktop (Windows 10 Pro).

So total power per card is (210-35)/2 = 87.5W for ~ 32MHs on the wall with this PSU (Chieftec CTG-750C)

(GPU power is 64W & 62W, 64W card is getting hot air from the 62W card backplate, Gigabyte mATX board GA-A75M-UD2H)

(maybe a bit lower than 87.5W as CPU usage is a bit higher during mining vs. idle desktop)

Settings during this test so far with Afterburner:

GPU: 1330MHz
MEM: 2250MHz

No other tweaks tested yet.

Wow that's insane 🤯 finally a GPU from AMD that's on par with Nvidia, good bye to high power consumption from wall, can you tell me how you get this GPU and for what price each?

[mmaenpaa]

Hi,

I got lucky (in a sense), I noticed the cards on local (Finnish) online store (jimms.fi).

Price was 450€ (VAT 0%) so not exactly @MSRP but not too bad either :-)

It seems almost all RX6600XT cards are gone for now at that store also :-(

[Metroid]

So total power per card is (210-35)/2 = 87.5W for ~ 32MHs on the wall with this PSU (Chieftec CTG-750C)

(GPU power is 64W & 62W, 64W card is getting hot air from the 62W card backplate, Gigabyte mATX board GA-A75M-UD2H)

(maybe a bit lower than 87.5W as CPU usage is a bit higher during mining vs. idle desktop)

GPU: 1330MHz
MEM: 2250MHz

I think you can lower you clock core and voltage core a lot more than this and achieve the same 32mhs. Although it has the same 256 as the rx 580, I believe it can go higher than the rx 580.

Also when buying gpus, one must be very careful as new asics are in and in the bear market only asics will be running on eth network.

[Gorosden]

So total power per card is (210-35)/2 = 87.5W for ~ 32MHs on the wall with this PSU (Chieftec CTG-750C)

(GPU power is 64W & 62W, 64W card is getting hot air from the 62W card backplate, Gigabyte mATX board GA-A75M-UD2H)

(maybe a bit lower than 87.5W as CPU usage is a bit higher during mining vs. idle desktop)

GPU: 1330MHz
MEM: 2250MHz

I think you can lower you clock core and voltage core a lot more than this and achieve the same 32mhs. Although it has the same 256 as the rx 580, I believe it can go higher than the rx 580.

Also when buying gpus, one must be very careful as new asics are in and in the bear market only asics will be running on eth network.

So ASIC owners have enough money to keep running their miners while GPUs owners can't keep up? You are joking 🤣🤣🤣 I'm going to keep mining even in bear market and I plan to have 1GH on ETH, I'm presently at 400MH just keeping my patience to see how the market plays out in the next two months, by the way I'm no paying a dime for electricity cos I run on solar energy 24/7