Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: What is a L1/L2 cache???

30 Oct 2010   #1
Sunimar

Windows 7 Ultimate
 
 
What is a L1/L2 cache???

Hello friends,

i want to know what exactly does L1/L2 cache means in processor,graphics card?? Though i have searched in detail but still not satisfied with the information....so need help from my community/forum members & friends....

This might be most dumb question as far as the forum standards are concerned...(i know people might also say that it not as no question is dumb or silly) but this statement is directed only to me guys....



My System SpecsSystem Spec
.

30 Oct 2010   #2
richc46

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

I know that I could not explain this any better
What is L2 Cache?
My System SpecsSystem Spec
30 Oct 2010   #3
Sunimar

Windows 7 Ultimate
 
 

Thanks Richard that was useful & got some more knowledge about the same...its just i can't understand more when its used for graphics card....any info on the same...
My System SpecsSystem Spec
.


30 Oct 2010   #4
alphanumeric
Microsoft MVP

Windows 8.1 Pro with Media Center 64 bit
 
 

I'm no expert on this stuff but I don't think it applies to graphics card processors. I don't remember ever seeing it listed in the specs for a card, just the amount of onboard video RAM.
My System SpecsSystem Spec
30 Oct 2010   #5
EzioAuditore

Winbdows 7 ultimate x64 | Ubuntu 12.04 x64 LTS
 
 

Quote   Quote: Originally Posted by alphanumeric View Post
I'm no expert on this stuff but I don't think it applies to graphics card processors. I don't remember ever seeing it listed in the specs for a card, just the amount of onboard video RAM.
Ya, I too haven't seen L1/L2 cache in any card's specs..

Here's a wikipedia aricle's section on Video RAM (if your interested in):

Dynamic random access memory - Wikipedia, the free encyclopedia

Some other informative links:

http://www.dansdata.com/gz014.htm

http://www.playtool.com/pages/vramwidth/width.html
My System SpecsSystem Spec
30 Oct 2010   #6
Bill2

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86
 
 

1) The idea behind cache memory is that RAM is much slower than the CPU. Now, if the CPU had to wait for RAM for every new byte of instructions or data, it would be ridiculously slow. Of course, ideally, your ENTIRE RAM could be on the CPU chip itself, running at the same speed as the CPU's core, but that would be very expensive.

To work around this, manufacturers add a small amount of fast RAM as "cache". Although the first time the CPU needs data, it has to wait for the RAM, when that data finally arrives, a copy is saved in the cache. The next time the CPU next needs data from a nearby address, there is a high chance that the data is in the cache, which means no delay in reading it into the CPU.

The bigger the cache, the more it can hold but the more expensive it is. Normally CPUs have a small "L1" cache which runs at full CPU core speed and a slower "L2" cache or both.

2) L1 and L2 are normally not used in the context of GPU though i believe newer GPUs like Fermi have added that feature.

HPCwire: NVIDIA Takes GPU Computing to the Next Level
My System SpecsSystem Spec
30 Oct 2010   #7
Sunimar

Windows 7 Ultimate
 
 

Quote   Quote: Originally Posted by Bill2 View Post
L1 and L2 are normally not used in the context of GPU though i believe newer GPUs like Fermi have added that feature.
That's right & that's what i was referring to the nVidia Fermi & other latest GPUs do use cache term...i read an artcile in a computer magazine when Fermi was being launched & they showed how it work & also kept using L1/L2 cache in the entire article so i was little confused too...
My System SpecsSystem Spec
Reply

 What is a L1/L2 cache???




Thread Tools





Similar help and support threads
Thread Forum
DNS Cache
Hi everyone. I'm having some problems viewing 3 of my sites on Win7 and XP. I can view the 3 sites on a machine with 2000 Pro. My host says they can see the sites and I can upgrade the sites but they won's show up for me. I've cleaned the dns cache to no avail. Any ideas as to why this is...
Network & Sharing
DNS Cache
Will I be giving myself any problems if I tick the DNS Cache in CCleaner which is scheduled to run once everyday using it's default settings. The PC is my Laptop
Network & Sharing
cache and RAM?
can anyone explain what cache is? i know RAM is memory which will be wiped when OS or PC is turned off.
General Discussion
Cache
How do you clear the cache in Windows 7? Thanks.
Performance & Maintenance
CPU L2 cache not known to win 7
Again, this is another tweak I found in Yamicsoft Windows 7 manager. I have yet to make changes, am just exploring the software. On the top in this picture, it states that you can manually set file caching memory settings, and below that that it is necessary to manually set the processor L2...
Performance & Maintenance

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:38.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App