a quick q about amd athlon 64s

[Ossie]

i've been looking through some of the new benchs for athlons and i've seen something about 1ch and 2ch chips. for example the athlon 3400+ has (2.4ghz/512k/2ch) but then the 4000+ (2.4ghz/1m/2ch). whats the deal with the 1ch and 2ch? thx in advance

 

[suszterpatt]

Number of cores? (???)

 

[Markfw]

Originally posted by: suszterpatt
Number of cores? (???)

No, neither of those is 2 cores. I think it could be memory channels ? Socket 754 would be 1ch and socket 939 would be 2ch if that is the case. Need a better spec on the descriptions. Both of the two listed are 2ch, so whats the question ?

 

[n7]

I answered his double-posted question here...

 

[GuitarDaddy]

Can't yall read greek?🙂 It's not channels or dual core. It's L2 cache, as in 512k l2 ch, and 1mb l2 ch. The OP just dropped the L. and didn't know what he's reading.

Now somebody what to explain L2 cache?

 

[AkumaX]

Originally posted by: Ossie
i've been looking through some of the new benchs for athlons and i've seen something about 1ch and 2ch chips. for example the athlon 3400+ has (2.4ghz/512k/2ch) but then the 4000+ (2.4ghz/1m/2ch). whats the deal with the 1ch and 2ch? thx in advance

athlon 3400+ (2.4ghz/512k/1ch) - socket 754
athlon 4000+ (2.4ghz/1m/2ch) - socket 939

fixed to 1 channel


apparantly in AMD's wise PR system, going from single (1) channel to dual (2) channel incorporates about a 5%-10% performance increase.

also, AMD says that going from 512kb L2 cache to 1024kb (1MB) L2 incorporates about a 5%-10% increase also.

so if you were to say, take 3400+ and add about ~15%, that's about 3910+ rating, but they rounded up to 4000+

 

[Ossie]

http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2456&p=5

theres the link from which i found it. it shows a 3400+ (2.4ghz/512k/1ch). i know what cashe is im just not sure what the difference between 1ch and 2ch is. cuz i thought 3400+ where 939 not 754. but let me know what you think?

 

[AkumaX]

Originally posted by: Ossie
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2456&p=5

theres the link from which i found it. it shows a 3400+ (2.4ghz/512k/1ch). i know what cashe is im just not sure what the difference between 1ch and 2ch is. cuz i thought 3400+ where 939 not 754. but let me know what you think?

oh i see what they did. it looks like they used a 3800+ (2.4ghz/512kb/2ch) with the nforce4, but they also put the nforce4 in single channel mode (dual channel mode is always just an option, its not mandatory to have it running). going with the PR rating, they labeled it 3400+ (2.4ghz/512k/1ch). either that or they neglected to include a socket 754 configuration description in the test.

 

[Jeff7181]

Originally posted by: GuitarDaddy
Can't yall read greek?🙂 It's not channels or dual core. It's L2 cache, as in 512k l2 ch, and 1mb l2 ch. The OP just dropped the L. and didn't know what he's reading.

Now somebody what to explain L2 cache?

Are you smoking crayons?

 

[GuitarDaddy]

Haven't tried that, which colors are best🙂 I'm scared of the orange ones


but your correct, I missed the mark on that post. Never seen proc described a ch1, ch2

 

[Jeff7181]

Originally posted by: GuitarDaddy
Haven't tried that, which colors are best🙂 I'm scared of the orange ones


but your correct, I missed the mark on that post. Never seen proc described a ch1, ch2

They're not described as ch1 and ch2... it's 1ch and 2ch. The place I see it most is in reviews and benchmarks where they label them as single or dual channel so you can easily compare the difference between a 2.2 GHz single channel Athlon 64 and a 2.2 GHz dual channel Athlon 64.

*EDIT* Also see it on some of the crappier e-tailers and on eBay when they don't list whether it's socket 754 or 939.

 

[biostud]

Originally posted by: Ossie
http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2456&p=5

theres the link from which i found it. it shows a 3400+ (2.4ghz/512k/1ch). i know what cashe is im just not sure what the difference between 1ch and 2ch is. cuz i thought 3400+ where 939 not 754. but let me know what you think?

1 channel gives you a peak on 3.2Gb/s transfer between CPU and RAM
2 channels gives you a peak on 6.4Gb/s transfer between CPU and RAM