Hey, in this anand pic: http://www.anandtech.com/video/show.../reviews/video/insidegraphics/NV30running.jpg You think that the three boxes with red LEDs in the right corner might be the nv30 clockrates, the main one being 400 mhz, the memory being 700 and the 200, what can that be? maybe the t & l engine?
Nv30 Clock rates?
- Thread starter sancheuz
- Start date
2 Things:
1) it's Mhz, not mhz. Remember that in SI-system, m equals to 0.001 and M to 1*10^6. so please be cautious when using these...
2) I still don't understand how ppl mixes up "efective" clockrate and real clock rate. if we are talking about DDR clocks, it still doesn't have double amount of high and low values in clock signal, but just data path uses both edges of clock signal for transfer timings, right?
for very obious reasons I usually use following syntax. For Example Radeon 8500 Retail Memory is clocked at "275Mhz DDR" or "DDR550". And when "DDR" isn't used in the context at all, I just read it as real clock rate, so in alexsok comment: "...but 700mhz memory? no way, too low." means to me at the first sight as same as "700Mhz DDR" or "DDR1400" which is a way too much for my acknowledge... (usually takes few 10 of seconds to notice that here's definately something wrong.)
and besides... don't jump on the gun on every picture and chapter that has NV30. eventhough NV30 and Radeon 9700 are most used names on the 3D HW community right now, I bet that there is a lot of BS flying. (as usual when talking about things that are based on rumours.)
1) it's Mhz, not mhz. Remember that in SI-system, m equals to 0.001 and M to 1*10^6. so please be cautious when using these...
2) I still don't understand how ppl mixes up "efective" clockrate and real clock rate. if we are talking about DDR clocks, it still doesn't have double amount of high and low values in clock signal, but just data path uses both edges of clock signal for transfer timings, right?
for very obious reasons I usually use following syntax. For Example Radeon 8500 Retail Memory is clocked at "275Mhz DDR" or "DDR550". And when "DDR" isn't used in the context at all, I just read it as real clock rate, so in alexsok comment: "...but 700mhz memory? no way, too low." means to me at the first sight as same as "700Mhz DDR" or "DDR1400" which is a way too much for my acknowledge... (usually takes few 10 of seconds to notice that here's definately something wrong.)
and besides... don't jump on the gun on every picture and chapter that has NV30. eventhough NV30 and Radeon 9700 are most used names on the 3D HW community right now, I bet that there is a lot of BS flying. (as usual when talking about things that are based on rumours.)
rendezvous
Regular
It looks lite the top two function generators are HP 8116A/001 and the bottom one is a HP 8116A.
Pictures can be found here
http://hem.passagen.se/rendez/hp/
You might have to copy and paste.
If you look at the picture in Anand's article you'll se a red led right next to the "kHz" on the top 2 function gerators. So my guess is that they are running at 400 and 200 kHz and the last one at 700 kHz (unless i missed a decimal dot.)
Pictures can be found here
http://hem.passagen.se/rendez/hp/
You might have to copy and paste.
If you look at the picture in Anand's article you'll se a red led right next to the "kHz" on the top 2 function gerators. So my guess is that they are running at 400 and 200 kHz and the last one at 700 kHz (unless i missed a decimal dot.)
Nappe1:
Have to say that I totally agree with you about the clockspeed thing. I never understood why people like to claim that DDR memory is infact twice the speed it really is. What's even more agrivating is the people that then say it's twice the speed and DDR. It's all marketspeak.
Nite_Hawk
Have to say that I totally agree with you about the clockspeed thing. I never understood why people like to claim that DDR memory is infact twice the speed it really is. What's even more agrivating is the people that then say it's twice the speed and DDR. It's all marketspeak.
Nite_Hawk
Well, similar principals apply elsewhere in marketspeak - Intel advertise they have 400/533MHz FSB's.
WhiningKhan
Regular
If we are about to bring another measurement unit to add into the chaos, I really don't think megasamples/second is the right choice... It is as relevant as calling grocery store customers as samples per day.
Since we are talking about data transfer, why the heck people are talking about Hz? It's bits that are moving, why not call them with their real name?
Since we are talking about data transfer, why the heck people are talking about Hz? It's bits that are moving, why not call them with their real name?
WhiningKhan:
It's relevant because it actually is samples, albeit digital ones (you talk about samples with logic analyzers too, so that should fit in rather well). I think the use of "bits" in the unit is depreciated since you would need to say "bit per second and pin" to be clear. And the "and pin" part makes the unit bulky.
Either way, as I said DDR<bitrate> is a nice notation.
sancheuz:
Are you interested in how efficent the IKOS simulators are? Otherwise it's rather irrelevant.
It's relevant because it actually is samples, albeit digital ones (you talk about samples with logic analyzers too, so that should fit in rather well). I think the use of "bits" in the unit is depreciated since you would need to say "bit per second and pin" to be clear. And the "and pin" part makes the unit bulky.
Either way, as I said DDR<bitrate> is a nice notation.
sancheuz:
Are you interested in how efficent the IKOS simulators are? Otherwise it's rather irrelevant.
