ES vs QS CPU

一般CPU正式出來之前會有兩個版本...
ES跟QS；
ES是從Unit Test開始,通常這種CPU很多都是第一批,穩的很穩,有問題的就很@*&)#....
因為要經過很多長時間的測試,所以體質有可能比較好些,
不過...買到好的還是不好的就要看運氣或者是看跟誰買哩...

QS通常都是後面的Stage,已經要出貨或者接近出貨的了,
由CPU廠商提供比較近似於到時候市場可以買的到的了..

不過這部份我想不管是es或者qs應該都是後端流出來的，應該是沒有保固的唷！
但相對的價格應該會比正式版的便宜些的！

QS是Quantity Sample(應該是這樣拼吧?)
是ES版的後續
算是出貨前最後一個測試版
不過還是一樣 是工程樣品
非正式販售的版本

其實ES也是有分A1 B1的

Pre-ES1 < ES1 < ES2 < Pre-QS < QS < GS < formal release

鐵蓋上面一樣會有QS的序號 Qxxx

QJBP <--這個值叫做QDF，是Intel ES版CPU專用的代號格式
只會代表唯一Intel的某一顆CPU

Pentium^® (C-1) Processor Mark Diagram The next several pages show the mark diagrams for:

• Production units of the the new Pentium® Processor C-1 Stepping with heatspreader (the inner box-outline in the diagram below)
  
• Samples of the C-1 Stepping (again with the heatspreader)
  
• Production mark diagram for the B-1'' stepping without the heatspreader for comparison.

Production Mark Diagram

Notes:

The inner line box defines the edge of the heatspreader.
Ink Mark = All Logo information on the heatspreader.
Laser Mark = The two lines of information above and below the heatspreader.
SS = Speed
NNN = Specification Number
FFFFFFFF = FPO # (Test Lot Traceability #).

Pentium^® (C-1) Processor Mark Diagram Samples Mark Diagram

The mark diagram for samples is identical to production units with one exception:

The second line of the sample mark diagram begins with 'Q' instead of 'S'. The rest of this line is a QDF # instead of an S-spec #; samples are ordered by QDF#.

Notes:

The inner line box defines the edge of the heatspreader.
Ink Mark = All Logo information on the heatspreader.
Laser Mark = The two lines of information above and below the heatspreader.
SS = Speed
NNNN = Sample QDF number
FFFFFFFF = FPO # (Test Lot Traceability #).

資料來源: http://www.coolaler.com/showthread.php/262697-%E8%AB%8B%E5%95%8F%E4%BB%80%E9%BA%BC%E6%98%AF%E3%80%90Pre-QS%E3%80%91%E7%9A%84%E7%94%A2%E5%93%81%EF%BC%9F
http://www.mobile01.com/topicdetail.php?f=296&t=2112122
http://www.coolaler.com/archive/index.php/t-165496.html
http://www.intel.com/support/processors/pentium/sb/cs-011042.htm