Athlon 64 939 vs. 754 pin - Tilted Forum Project Discussion Community

killeena · 08-08-2005, 10:34 AM

I have a machine that has a socket 754 Athlon 64 3200+, and another one that I just built that has a socket 939 Athlon 64 3200+. I noticed that the default clock speeds are different for both of them. The 754 says it is running at 2.25 GHZ with bus speed set to 204 MHZ, and has up to an 11x multiplier, but the 939 says it is at 2.0 GHZwith the bus speed at 200 MHZ, and the multiplier only goes up to 10x. The 754 motherboard is an Abit KV8 Pro, and the 939 is the Abit AN8-V.

Are they supposed to be clocked differently, or is something wrong?

Jinn · 08-08-2005, 10:54 AM

Not a hardware guru by any means, but are they different chipset makers? Winchester vs a Clawhammer, perhaps? Socket 939 is the "new" standard that AMD is going with, as it can handle the 64s and the x2s.

Lasereth · 08-08-2005, 04:19 PM

They are entirely different chips. The socket 939 Athlon 64's have a different pin structure that allows the clock speed and L2 cache to be lowered without a performance loss. Most of the socket 754 Athlon 64's have 1 MB of L2 cache while the 939's usually have 512kb even though they perform the same. In some tests, the 939's actually perform better due to a more efficient memory interface. In short, yes, they're supposed to be different.

-Lasereth

killeena · 08-09-2005, 05:58 AM

Sweet, thanks. Makes me feel better. I was worried there for a minute that something was wrong.

08-08-2005, 10:34 AM	#1 (permalink)
killeena Crazy Location: Meechigan	Athlon 64 939 vs. 754 pin I have a machine that has a socket 754 Athlon 64 3200+, and another one that I just built that has a socket 939 Athlon 64 3200+. I noticed that the default clock speeds are different for both of them. The 754 says it is running at 2.25 GHZ with bus speed set to 204 MHZ, and has up to an 11x multiplier, but the 939 says it is at 2.0 GHZwith the bus speed at 200 MHZ, and the multiplier only goes up to 10x. The 754 motherboard is an Abit KV8 Pro, and the 939 is the Abit AN8-V. Are they supposed to be clocked differently, or is something wrong? __________________ Freedom would be not to choose between black and white but to abjure such prescribed choices. - Theodor Adorno

08-08-2005, 10:54 AM	#2 (permalink)
Jinn Lover - Protector - Teacher Location: Seattle, WA	Not a hardware guru by any means, but are they different chipset makers? Winchester vs a Clawhammer, perhaps? Socket 939 is the "new" standard that AMD is going with, as it can handle the 64s and the x2s. __________________ "I'm typing on a computer of science, which is being sent by science wires to a little science server where you can access it. I'm not typing on a computer of philosophy or religion or whatever other thing you think can be used to understand the universe because they're a poor substitute in the role of understanding the universe which exists independent from ourselves." - Willravel

08-08-2005, 04:19 PM	#3 (permalink)
Lasereth Knight of the Old Republic Location: Winston-Salem, NC	They are entirely different chips. The socket 939 Athlon 64's have a different pin structure that allows the clock speed and L2 cache to be lowered without a performance loss. Most of the socket 754 Athlon 64's have 1 MB of L2 cache while the 939's usually have 512kb even though they perform the same. In some tests, the 939's actually perform better due to a more efficient memory interface. In short, yes, they're supposed to be different. -Lasereth __________________ "A Darwinian attacks his theory, seeking to find flaws. An ID believer defends his theory, seeking to conceal flaws." -Roger Ebert

08-09-2005, 05:58 AM	#4 (permalink)
killeena Crazy Location: Meechigan	Sweet, thanks. Makes me feel better. I was worried there for a minute that something was wrong. __________________ Freedom would be not to choose between black and white but to abjure such prescribed choices. - Theodor Adorno