INFO: Athlon Pal/TbredA/TbredB: How To Tell Them Apart
 

Which Codes Mean What

To make this easy, what you need to know is listed by processor speed.

The OPN information is printed somewhere on every AMD CPU. For all Palominos, if you're looking at one, the OPN is the first code printed on the core of the CPU located in the middle of the processor. For all Thoroughbreds, the OPN the first code printed on the black area on one edge of the CPU.

This information is based on current AMD datasheets, which are subject to change. We'll update as needed.

There are three critical indicators in the OPN.

AX1700DMT3C: Voltage
AX1700DMT3C: Maximum temperature
AX1700DMT3C: FSB Speed

The following codes mean the following:

Voltage

L: 1.50V
U: 1.60V
K: 1.65V
M: 1.75V


All Palominos have default voltage of 1.75V, so all Palominos have voltage code of "M." TBredAs have a default range of 1.5-1.65V. TBredBs have a default range of 1.6V-1.65V.

Maximum Temperature

T: 90C
V: 85C


All AMD processors with a rating less than 2200+ have a maximum temperature of 90C, so they're all "Ts." Anything above that has a max temp of 85C, so they're all "Vs." FSB Speed

C: 266MHz
D: 333MHz


Here's how these codes translate in real life with real chips:

Update 12/10/02: A certain website did note a misspelling of the word "Thoroughbred," and I've corrected based on that. Thanks for catching it!

1700+

Palominos: If the website you're ordering from shows an order code of AX1700DMT3C, that's a Palomino.

TBredA: If the website you're ordering from shows an order code of AXDA1700DLT3C, that's a Thoroughbred A.

TBredB: If the website you're ordering from shows an order code of AXDA1700DUT3C, that's a Thoroughbred B.

1800+

Palominos: If the website you're ordering from shows an order code of AX1800DMT3C, that's a Palomino.

TBredA: If the website you're ordering from shows an order code of AXDA1800DLT3C, that's a Thoroughbred A.

TBredB: If the website you're ordering from shows an order code of AXDA1800DUT3C, that's a Thoroughbred B.

1900+

Palominos: If the website you're ordering from shows an order code of AX1900DMT3C, that's a Palomino.

TBredA: If the website you're ordering from shows an order code of AXDA1900DLT3C, that's a Thoroughbred A.

TBredB: If the website you're ordering from shows an order code of AXDA1900DUT3C, that's a Thoroughbred B.

2000+

Palominos: If the website you're ordering from shows an order code of AX2000DMT3C, that's a Palomino.

TBredA: If the website you're ordering from shows an order code of AXDA2000DKT3C, that's a Thoroughbred A.

TBredA/B: If the website you're ordering from shows an order code of AXDA2000DUT3C, that could be either a Thoroughbred A or Thoroughbred B. The only way to distinguish between the two is by the stepping code.

All TBredAs have a stepping code which ends in "A," like "AIUGA." All TBredBs have a stepping code which ends in "B," like "AIUGB."

P.S. There's two listed TBredA types in the AMD techdoc. One uses 1.6V, the other uses 1.65V. The TBredB is solely 1.6V.

2100+

Palominos: If the website you're ordering from shows an order code of AX2100DMT3C, that's a Palomino.

TBredA/B: If the website you're ordering from shows an order code of AXDA2000DUT3C, that could be either a Thoroughbred A or Thoroughbred B.

All TBredAs have a stepping code which ends in "A," like "AIUGA." All TBredBs have a stepping code which ends in "B," like "AIUGB."

2200+

TBredA: If the website you're ordering from shows an order code of AXDA2200DKV3C, that's a Thoroughbred A.

TBredB: If the website you're ordering from shows an order code of AXDA2200DUV3C, that's a Thoroughbred B.

2400+

Sorry, no exciting choices here (yet). They're all TBredBs, and they'll have an order code of AXDA2400DKV3C.

Yes, the DKV part is the same as for the 2200+. That's because a TBredA runs at 1.65V (that's what the "K" stands for) at 2200+. A TBredB runs at 1.6V (that's what the "U" stands for) at 2200+ and 1.65V at 2400+ and above. 2600+

These are all TBredBs, too, but just in case "which one I am getting" is getting old, the 2600+ gives you a new, different challenge: What Speed Am I Getting? There will be two 2600+s, but they'll run at different speeds. Since the 333MHz bus helps performance, AMD figured (correctly) that a CPU running at a slightly lower speed and higher bus was the same as a CPU running at a higher speed and a lower bus.

The 2600+, 266MHz version, will run at 2133MHz.

The 2600+, 333MHz version, will run at 2083MHz.

We'll no doubt see more situations like this as the number of 333MHz processors expands.

The way you tell these apart by OPN is that the 266MHz processors will always have an OPN that ends in "C," while the 333MHz processors will always have an OPN that ends in "D."

Next spring, we'll get more of the same when Bartons show up. You'll have Bartons and TBreds running at the same speed, too.


credits: http://www.overclockers.com/tips00173/

1500+ AX1500DMT3C = 1333MHz Palomino (Model 6) 266FSB (133.3 x 10), 256K cache, 1.75V, 90ºC Max Die Temp

1600+ AX1600DMT3C = 1400MHz Palomino (Model 6) 266FSB (133.3 x 10.5), 256K cache, 1.75V, 90ºC Max Die Temp

1700+ AX1700DMT3C = 1467MHz Palomino (Model 6) 266FSB (133.3 x 11), 256K cache, 1.75V, 90ºC Max Die Temp
1700+ AXDA1700DLT3C = 1467MHz Tbred (Model 8) 266FSB (133.3 x 11), 256K cache, 1.5V, 90ºC Max Die Temp

1800+ AX1800DMT3C = 1533MHz Palomino (Model 6) 266FSB (133.3 x 11.5), 256K cache, 1.75V, 90ºC Max Die Temp
1800+ AXDA1800DLT3C = 1533MHz Tbred (Model 8) 266FSB (133.3 x 11.5), 256K cache, 1.5V, 90ºC Max Die Temp

1900+ AX1900DMT3C = 1600MHz Palomino (Model 6) 266FSB (133.3 x 12), 1.75V, 256K cache, 90ºC Max Die Temp
1900+ AXDA1900DLT3C = 1600MHz Tbred (Model 8) 266FSB (133.3 x 12), 256K cache, 1.5V, 90ºC Max Die Temp

2000+ AX2000DMT3C = 1667MHz Palomino (Model 6) 266FSB (133.3 x 12.5), 1.75V, 256K cache, 90ºC Max Die Temp
2000+ AXDA2000DKT3C = 1667MHz Tbred (Model 8) 266FSB (133.3 x 12.5), 256K cache, 1.65V, 90ºC Max Die Temp
2000+ AXDA2000DUT3C = 1667MHz Tbred (Model 8) 266FSB (133.3 x 12.5), 256K cache, 1.6V, 90ºC Max Die Temp
2000+ AXDC2000DUT3C = 1667MHz Barton (Model 10) 266FSB (133.3 x 12.5), 256K cache, 1.6V, 90ºC Max Die Temp

2100+ AX2100DMT3C = 1733MHz Palomino (Model 6) 266FSB (133.3 x 13), 256K cache, 1.75V, 90ºC Max Die Temp
2100+ AXDA2100DUT3C = 1733MHz Tbred (Model 8) 266FSB (133.3 x 13), 256K cache, 1.6V, 90ºC Max Die Temp

2200+ AXDA2200DKV3C = 1800MHz Tbred (Model 8) 266FSB (133.3 x 13.5), 256K cache, 1.65V, 85ºC Max Die Temp
2200+ AXDA2200DUV3C = 1800MHz Tbred (Model 8) 266FSB (133.3 x 13.5), 256K cache, 1.6V, 85ºC Max Die Temp
2200+ AXDC2200DUV3C = 1800MHz Barton (Model 10) 266FSB (133.3 x 13.5), 256K cache, 1.6V, 85ºC Max Die Temp

2400+ AXDA2400DKV3C = 2000MHz Tbred (Model 8) 266FSB (133.3 x 15), 256K cache, 1.65V, 85ºC Max Die Temp
2400+ AXDA2400DUV3C = 2000MHz Tbred (Model 8) 266FSB (133.3 x 15), 256K cache, 1.6V, 85ºC Max Die Temp
2400+ AXDC2400DUV3C = 2000MHz Barton (Model 10) 266FSB (133.3 x 15), 256K cache, 1.6V, 85ºC Max Die Temp

2500+ AXDA2500DKV4D = 1833MHz Barton (Model 10) 333FSB (166.6 x 11), 512K cache, 1.65V, 85ºC Max Die Temp

2600+ AXDA2600DKV3C = 2133MHz Tbred (Model 8) 266FSB (133.3 x 16), 256K cache, 1.65V, 85ºC Max Die Temp
2600+ AXDA2600DKV3D = 2083MHz Tbred (Model 8) 333FSB (166.6 x 12.5), 256K cache, 1.65V, 85ºC Max Die Temp

2700+ AXDA2700DKV3D = 2167MHz Tbred (Model 8) 333FSB (166.6 x 13), 256K cache, 1.65V, 85ºC Max Die Temp

2800+ AXDA2800DKV4D = 2083MHz Barton (Model 10) 333FSB (166.6 x 12.5), 512K cache, 1.65V, 85ºC Max Die Temp

3000+ AXDA3000DKV4D = 2167MHz Barton (Model 10) 333FSB (166.6 x 13), 512K cache, 1.65V, 85ºC Max Die Temp
3000+ AXDA3000DKV4E = 2064MHz Barton (Model 10) 400FSB (196.6 x 10.5), 512K cache, 1.65V, 85ºC Max Die Temp

3200+ AXDA3200DKV4E = 2163MHz Barton (Model 10) 400FSB (196.6 x 11), 512K cache, 1.65V, 85ºC Max Die Temp

thats not quite true, not all chips with a default voltage of 1.6v are tbreda chips, only the latest tbredb chips have a default voltage of 1.5v, they all used to have a default voltage of 1.6v before.

nice infos though

since these are from 25th May last year, it's maybe time for an update ;)

even back then we had 1.5v and 1.6v tbred Bs :P