Why frames still drop in crossfire mode

[Daniel Deutsch]

I was wondering what could be the problem with my crossfire mode because every time its activated i lose frames. for example i play battlefield 4 and get around 55-60 fps with it off and then I get 17-22 when its activated (on ultra) i have uninstalled all drivers and reinstalled but that didnt change anything. please help! Also my cards are HD7970's one is the oc version.

 

[damric]

What CPU?

 

[i7Baby]

What cpu you got? Maybe its bottlenecking.

http://www.hardocp.com/article/2014/03/04/bf4_amd_mantle_video_card_performance_review_part_1/6#.U5e7UfmSx7E says its the game itself plus amd driver shortcomings

Google stuff!

 

[Daniel Deutsch]

What cpu you got? Maybe its bottlenecking.

http://www.hardocp.com/article/2014/03/04/bf4_amd_mantle_video_card_performance_review_part_1/6#.U5e7UfmSx7E says its the game itself plus amd driver shortcomings

Google stuff!

its not just battlefield but that is just the most recent and most extreme example also its a 3.50 gigahertz Intel Core i7-2600K

 

[Daniel Deutsch]

What CPU?

3.50 gigahertz Intel Core i7-2600K

 

[damric]

What CPU?

3.50 gigahertz Intel Core i7-2600K

You can easily run that CPU at 4.5GHz. I've seen a lot of those hit 5GHz.

See if that improves framerate.

 

[Daniel Deutsch]

What CPU?

3.50 gigahertz Intel Core i7-2600K

You can easily run that CPU at 4.5GHz. I've seen a lot of those hit 5GHz.

See if that improves framerate.

I dont know how and am way to scared to overclock even tho i do have watercooling

 

[damric]

What CPU?

3.50 gigahertz Intel Core i7-2600K

You can easily run that CPU at 4.5GHz. I've seen a lot of those hit 5GHz.

See if that improves framerate.

I dont know how and am way to scared to overclock even tho i do have watercooling

OC is pretty easy. Study this, then post any specific questions.

http://www.tomshardware.com/forum/265056-29-2600k-2500k-overclocking-guide

 

[Daniel Deutsch]

What CPU?

3.50 gigahertz Intel Core i7-2600K

You can easily run that CPU at 4.5GHz. I've seen a lot of those hit 5GHz.

See if that improves framerate.

I dont know how and am way to scared to overclock even tho i do have watercooling

OC is pretty easy. Study this, then post any specific questions.

http://www.tomshardware.com/forum/265056-29-2600k-2500k-overclocking-guide

so far it seems to be that when i have crossfire turned off it works as if it is on and when i select it to be on it works even worse than the card by itself when i play bf4 one ultra i get around 70-80 fps and thats when crossfire is off then when its turned on it gives me a 25-30 fps

 

[i7Baby]

You won't have to overclock the cpu. I think it's more of a case of what hardOCP reported.

Google other games eg 'crysis 3 crossfire' and see what comes up

 

[nforce4max]

Even at that speed you shouldn't be getting such poor fps with crossfire enabled, do you have both bridges installed? Good old reliable SB and super easy overclocking even my great grandpa at the age of 88 could do that with a little instruction lol. SB is easy mode due to its better thermals.

 

[Daniel Deutsch]

Even at that speed you shouldn't be getting such poor fps with crossfire enabled, do you have both bridges installed? Good old reliable SB and super easy overclocking even my great grandpa at the age of 88 could do that with a little instruction lol. SB is easy mode due to its better thermals.

well i looked into it before buying both cards and it said i only need one also i accidently hit best solution on your reply and i cant find how to undo thisXD

 

[Daniel Deutsch]

You won't have to overclock the cpu. I think it's more of a case of what hardOCP reported.

Google other games eg 'crysis 3 crossfire' and see what comes up

so far it seems to be that when i have crossfire turned off it works as if it is on and when i select it to be on it works even worse than the card by itself when i play bf4 one ultra i get around 70-80 fps and thats when crossfire is off then when its turned on it gives me a 25-30 fps

 

[damric]

IF you want, I can remove best answer. But I need your written permission to do so

 

[Daniel Deutsch]

IF you want, I can remove best answer. But I need your written permission to do so

permission granted

 

[damric]

IF you want, I can remove best answer. But I need your written permission to do so

permission granted

done.

 

[Daniel Deutsch]

IF you want, I can remove best answer. But I need your written permission to do so

IF you want, I can remove best answer. But I need your written permission to do so

permission granted

done.

so far it seems to be that when i have crossfire turned off it works as if it is on and when i select it to be on it works even worse than the card by itself when i play bf4 one ultra i get around 70-80 fps and thats when crossfire is off then when its turned on it gives me a 25-30 fps

 

[damric]

Wow maybe your PSU starts choking when both cards are activated. What is your PSU model?

 

[Daniel Deutsch]

Wow maybe your PSU starts choking when both cards are activated. What is your PSU model?

http://www.coolermaster-usa.com/product.php?product_id=2999

 

[Daniel Deutsch]

Wow maybe your PSU starts choking when both cards are activated. What is your PSU model?

this is what belarc advisor could get for every thing in my pc (just too lazy to try and find each part separately)
Operating System System Model
Windows 7 Home Premium (x64) Service Pack 1 (build 7601)
Install Language: English (United States)
System Locale: English (United States)
Installed: 10/31/2013 11:31:00 PM
Boot Mode: Legacy BIOS in UEFI (Secure Boot not supported) No details available
Processor a Main Circuit Board b
3.50 gigahertz Intel Core i7-2600K
32 kilobyte primary memory cache
256 kilobyte secondary memory cache
8192 kilobyte tertiary memory cache
64-bit ready
Multi-core (4 total)
Hyper-threaded (8 total) Board: ASUSTeK COMPUTER INC. P8Z77-V PRO Rev 1.xx
Serial Number: MT7022013400998
Bus Clock: 100 megahertz
UEFI: American Megatrends Inc. 0603 02/04/2012
Drives Memory Modules c,d
3000.60 Gigabytes Usable Hard Drive Capacity
1649.52 Gigabytes Hard Drive Free Space

ASUS DRW-24B1ST c ATA Device [Optical drive]

ST1000DM003-9YN162 [Hard drive] (1000.20 GB) -- drive 1, s/n S1D0RZL9, rev CC4D, SMART Status: Healthy
ST2000DM001-9YN164 [Hard drive] (2000.40 GB) -- drive 0, s/n Z1E1A633, rev CC4H, SMART Status: Healthy 16340 Megabytes Usable Installed Memory

Slot 'ChannelA-DIMM0' has 4096 MB
Slot 'ChannelA-DIMM1' has 4096 MB (serial number D81A0000)
Slot 'ChannelB-DIMM0' has 4096 MB
Slot 'ChannelB-DIMM1' has 4096 MB (serial number 522B0000)

 

[i7Baby]

It doesn't give your psu.

Realpower, Extreme Power, ... ? Which model? Read the label.

 

[Daniel Deutsch]

It doesn't give your psu.

Realpower, Extreme Power, ... ? Which model? Read the label.

http://www.coolermaster-usa.com/product.php?product_id=2999

 

[i7Baby]

OK - Silent Pro Gold - from Enhance.

I would think it'd be Ok , but not according to http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

 

[Daniel Deutsch]

OK - Silent Pro Gold - from Enhance.

I would think it'd be Ok , but not according to http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

Radeon HD 7970 Crossfire - On your average system the cards require you to have a 750 Watt power supply unit as minimum.http://www.guru3d.com/articles_pages/amd_radeon_hd_7970_review,8.html