What does the "T" and "E" stand for in t

[Benjamins_2002]

Does anyone know what the "E" in Intels processors such as E4500 and E8600. Also what does the "T" stand for in such model names as T6600 and T9600? Thanks for your time and help.

[Marcin]

E indicates an energy-efficient dual core CPU
T indicates an energy-efficient mobile CPU

[6a6ar09a]

A = Dual-Core Intel® Xeon® processor 7000 sequence
C = Intel® Celeron® processor
D = Dual-Core Intel® Xeon® processor 2.80 GHz
E = Intel® Pentium® III processor
Intel® Pentium® processor Extreme Edition and Intel® Pentium® D
F = processor
I = Dual-Core Intel® Xeon® processor 5000 series
J = 64-bit Intel® Xeon® processor MP with 1MB L2 cache
K = Mobile Intel® Pentium® III processor
L = Intel® Celeron® D processor
M = Mobile Intel® Celeron® processor
N = Intel® Pentium® 4 processor
O = Intel® Xeon® processor MP
P = Intel ® Xeon® processor
Mobile Intel® Pentium® 4 processor supporting Hyper-Threading technology
Q = on 90-nm process technology
R = Intel® Pentium® 4 processor on 90 nm process
64-bit Intel® Xeon® processor with 800 MHz system bus (1 MB and 2 MB L2
S = cache versions)
T = Mobile Intel® Pentium® 4 processor-M
U = 64-bit Intel® Xeon® processor MP with up to 8MB L3 cache
Mobile Intel® Celeron® processor on .13 micron process in Micro-FCPGA
V = package
W= Intel® Celeron® M processor
Intel® Pentium® M processor on 90nm process with 2-MB L2 cache and
X = Intel® processor A100 and A110 with 512-KB L2 cache
Y = Intel® Pentium® M processor
Z = Mobile Intel® Pentium® 4 processor with 533 MHz system bus
Intel® Pentium® D processor 900 sequence and Intel® Pentium® processor
AA = Extreme Edition 955, 965
AB = Intel® Pentium® 4 processor 6x1 sequence
AC = Intel(R) Celeron(R) processor in 478 pin package
AD = Intel(R) Celeron(R) D processor on 65nm process
Intel® Core™ Duo processor and Intel® Core™ Solo processor on 65nm
AE = process
AF = Dual-Core Intel® Xeon® processor LV
AG = Dual-Core Intel® Xeon® processor 5100 series

[Qwerty]

[Xaar]

6a6ar09a's list is out of the Specification update documents released by Intel. It's not equal to the asked prefixes of the Core/Celeron/Pentium Dual-Core processors

His list is useful to identify which processor is affected to a special erratum, like the "Transaction is not retried after BINIT#" which is erratum number N4. That means that this is an erratum of the Intel ® Pentium ® 4 processor (therefore the "N").

Best regards, Xaar.

[6a6ar09a]

Xaar is correct, this list is from Intel specification update document but this list is NOT what was asked for. I was "too fast" and I have made mistake
Sorry. My apologizes for misleading and confusing info.

[gshv]

E - desktop processor. It's usually dual-core CPU, but there are some Exxxx quad-core Xeons.

T - mobile processor with standard Thermal Design Power (TDP), i.e TDP <= 35 Watt

Gennadiy

[6a6ar09a]

Hm. Trying to fix my mistake and trying to find specific, exact reference for this "E" I returned to Intel website;

http://ark.intel.com/Product.aspx?id=30781 (E4500)

and I have found this Datasheet;

http://www.intel.com/design/processor/datashts/313278.htm

Unbelievable. There are tons of some turbo™-giga®-mega© info... everything else is there... but, there are NO specific explanation about this "E".

This "E" definitely cant be marking that describe/mean "desktop processor" (would be D in that case) even if they are rally desktop processors.

Finally, I checked processor package (box pictured below) and... "Energy-Efficient Computing" should be the answer... I think.

After all, (or before all of us) Marcin's answer is correct, I think.

Probably, something similar is with this "T". I give up... but some Thermal enhancement (like gshv say) should be correct answer. This (better thermal properties) is something that define CPUs for mobile devices.

So, Marcin (1/2) + gshv(2/2) - 6a6ar09a = final answer

[Marcin]

[6a6ar09a]

I have spend 3+ hours trying to find "E" explanation... and nothing. Unbelievable.

Is it so hard for Intel to make this basic info available?

[gshv]

[gshv]

http://www.intel.com/products/processor_number/about/core.htm

Gennadiy

[6a6ar09a]

Cool. That's it.

"E" comes from "energy efficient"
"T" from "TDP"
"Q" from "quad-core"
"X" from "extreme"
...

Thanks!

BTW. Just wondering... if this "E" comes from Energy or from Efficient?


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[Benjamins_2002]

Wow, thanks for all of your very useful responses. I'm actually an electronics salesman and I hated how dumb I looked to the customer when they asked what the letters meant. If anyone else has anything else to add please feel free! It won't be ignored. Have a great New Years everybody and thanks again.

[Benjamins_2002]

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