AMD Athlon 64 X2 7750 Kuma (Black Edition) - Page 2

Reece · 03-09-09, 11:53 PM

Order placed, pickup on Friday!

Got it for 120 Australian Dollars.

Zachstar · 03-10-09, 02:57 PM

Quote:

Originally Posted by Reece

Order placed, pickup on Friday!

Got it for 120 Australian Dollars.

Great buy!

The Kuma is still a great CPU the 65nm process is a bit dated but that is still a Phenom 1 core. You will get a crap ton of performance out of it.

I'm paying for a Tri Core and its rather high price just for 45nm just to be able to last 6 months or so longer than a Kuma. It bloated by build costs to over 500 USD

Reece · 03-13-09, 07:38 AM

This is confusing, I just picked up an Athlon X2 7750 Kuma Black edition marked as 2.7ghz, the one I currently have is an X2 Athlon 6000 marked as 3.1ghz and overclocked to 3.25ghz, which one is faster??

did I just make a blunder, and bought a slower chip??

Edit: Ahh a little research, seems it's quite a bit faster and runs cooler:
http://www.overclock.net/amd-cpus/43...z-vs-x2-2.html

AVGWarhawk · 03-13-09, 08:00 AM

I'm guessing you purchased a slower chip but the new set you have might be able to clock much higher than your 6000.

Reece · 03-13-09, 08:08 AM

Yeh I'm not 100% up to all the jargon on this stuff, depends also on things like cache, the 6000 is 1mb L2, I assume the 7750 is the same, I just assumed the 7750 would be faster than a 6000!!

AVGWarhawk · 03-13-09, 10:09 AM

Quote:

Other specifications of the chip include 512 KB of L2 cache per core, and a shared L3 cache of 2 MB.

These specs alone should say it is faster than your 6000

Reece · 03-15-09, 06:42 PM

I've got it installed and quite impressed, though I had to change the bios settings (ram etc) to get the best performance, had the computer bios reset a few times in the process!!

To be able to push the CPU to give good performance I had to lower the ram speed, mainly the 2T Mode from Disabled (1T) to enabled, it is good Kingston ram but pushing the FSB from 200mhz to 238mhz has it's downside, wish I could change the multiplier (13.5) instead but fail to find how! The old 3D mark 06 bench was 8851, it's now 9410, so quite an improvement, some CPU-Z reports, note the DRAM Frequency from 400 to 476mhz:

Funny that the 800mhz ram shows as 400mhz but apparently normal!

Comments welcome.

Edit: I just checked the bios & think I can change the multiplier, mabe I should change to 15???

AVGWarhawk · 03-15-09, 06:50 PM

Bottom line, is it faster than the 6000+ you replaced?

Reece · 03-15-09, 09:34 PM

Quote:

Bottom line, is it faster than the 6000+ you replaced?

Yes quite a lot, from index of 8851 to 9410.

I did try a combination of different multipliers but 13.5 is best:
238mhz X 13.5 - 9410 Ram 2T
200mhz X 16.0 - 9260 Ram 1T
222mhz X 14.5 - 9393 Ram 2T
228mhz X 14.0 - 9279 Ram 2T
Pushing higher on any above I have to reset the bios.

I did try 247mhz X 13.0 but had to reset.

Overall, very happy.

AVGWarhawk · 03-16-09, 09:38 AM

In the end, that is all that matters...you are happy with the results.

Zachstar · 03-16-09, 01:15 PM

Pushing a 65nm to 3.2 is no small feat, I am QUITE impressed! Congrats!

Just keep an eye on the cooling and keep it clean. That is ALOT of heat that has to be pumped away and if it builds up the chip will automatically lower as far as 100mhz and if that does not work will trip the power supply (If its like my old Intel)

The good news is on games like E:TW that rely on being able to get some strength out of the CPU you will see quite a bit of performance gain.

I'm going with a tri core 45nm mainly to be able to overclock with less heat. Thus I respect those who do it at the 65nm range.

Reece · 03-17-09, 09:32 AM

Thanks Zachstar, the cpu has a huge heat pipe cooler & runs between 32 & 37 degrees C, Far Cry 2 runs a breeze, just ordered Turok, it's coop so will be interesting to see how it goes on a LAN link up!!

Quote:

I'm going with a tri core 45nm mainly to be able to overclock with less heat.

Sounds great, a little pricey for me, if you have 3Dmark06 would be interesting to see your results, and the operating temperature!

03-09-09, 11:53 PM	#16
Reece CINC Pacific Fleet Join Date: Sep 2003 Location: Down Under Posts: 32,756 Downloads: 171 Uploads: 0	Order placed, pickup on Friday! Got it for 120 Australian Dollars. __________________ *Sub captains go down with their ship!*

03-13-09, 07:38 AM	#18
Reece CINC Pacific Fleet Join Date: Sep 2003 Location: Down Under Posts: 32,756 Downloads: 171 Uploads: 0	This is confusing, I just picked up an Athlon X2 7750 Kuma Black edition marked as 2.7ghz, the one I currently have is an X2 Athlon 6000 marked as 3.1ghz and overclocked to 3.25ghz, which one is faster?? did I just make a blunder, and bought a slower chip?? Edit: Ahh a little research, seems it's quite a bit faster and runs cooler: http://www.overclock.net/amd-cpus/43...z-vs-x2-2.html __________________ *Sub captains go down with their ship!* Last edited by Reece; 03-13-09 at 07:50 AM.

03-13-09, 08:00 AM	#19
AVGWarhawk Lucky Jack Join Date: Jun 2005 Location: In a 1954 Buick. Posts: 27,343 Downloads: 90 Uploads: 0	I'm guessing you purchased a slower chip but the new set you have might be able to clock much higher than your 6000. __________________ “You're painfully alive in a drugged and dying culture.” ― Richard Yates, Revolutionary Road

03-13-09, 08:08 AM	#20
Reece CINC Pacific Fleet Join Date: Sep 2003 Location: Down Under Posts: 32,756 Downloads: 171 Uploads: 0	Yeh I'm not 100% up to all the jargon on this stuff, depends also on things like cache, the 6000 is 1mb L2, I assume the 7750 is the same, I just assumed the 7750 would be faster than a 6000!! __________________ *Sub captains go down with their ship!*

03-15-09, 06:42 PM	#22
Reece CINC Pacific Fleet Join Date: Sep 2003 Location: Down Under Posts: 32,756 Downloads: 171 Uploads: 0	I've got it installed and quite impressed, though I had to change the bios settings (ram etc) to get the best performance, had the computer bios reset a few times in the process!! To be able to push the CPU to give good performance I had to lower the ram speed, mainly the 2T Mode from Disabled (1T) to enabled, it is good Kingston ram but pushing the FSB from 200mhz to 238mhz has it's downside, wish I could change the multiplier (13.5) instead but fail to find how! The old 3D mark 06 bench was 8851, it's now 9410, so quite an improvement, some CPU-Z reports, note the DRAM Frequency from 400 to 476mhz: Funny that the 800mhz ram shows as 400mhz but apparently normal! Comments welcome. *Edit:* I just checked the bios & think I can change the multiplier, mabe I should change to 15??? __________________ *Sub captains go down with their ship!*

03-15-09, 06:50 PM	#23
AVGWarhawk Lucky Jack Join Date: Jun 2005 Location: In a 1954 Buick. Posts: 27,343 Downloads: 90 Uploads: 0	Bottom line, is it faster than the 6000+ you replaced? __________________ “You're painfully alive in a drugged and dying culture.” ― Richard Yates, Revolutionary Road

03-16-09, 09:38 AM	#25
AVGWarhawk Lucky Jack Join Date: Jun 2005 Location: In a 1954 Buick. Posts: 27,343 Downloads: 90 Uploads: 0	In the end, that is all that matters...you are happy with the results. __________________ “You're painfully alive in a drugged and dying culture.” ― Richard Yates, Revolutionary Road

03-16-09, 01:15 PM	#26
Zachstar Sea Lord Join Date: Feb 2005 Location: Shreveport, Louisiana Posts: 1,956 Downloads: 13 Uploads: 0	Pushing a 65nm to 3.2 is no small feat, I am QUITE impressed! Congrats! Just keep an eye on the cooling and keep it clean. That is ALOT of heat that has to be pumped away and if it builds up the chip will automatically lower as far as 100mhz and if that does not work will trip the power supply (If its like my old Intel) The good news is on games like E:TW that rely on being able to get some strength out of the CPU you will see quite a bit of performance gain. I'm going with a tri core 45nm mainly to be able to overclock with less heat. Thus I respect those who do it at the 65nm range. __________________