The Chip

The 1.1GHz Athlon "Thunderbird" (from here on referred to as the Thunderbird) doesn't boast any new changes over the previous Socket-A Thunderbirds other than the increased clock speed.

· 37 million transistor 0.18-micron Thunderbird core with Copper interconnects
· 1.1GHz (1100MHz) clock speed - 11.0x clock multiplier
· 128KB on-die L1 cache running at core speed
· 64-bit exclusive 256KB on-die L2 cache running at clock speed
· 462-pin Socket A EV6 CPU interface running at 100MHz DDR (effectively 200MHz)
· 1.75v core voltage

As you can tell by the above specs, nothing has really changed with the 1.1GHz Thunderbird. If you're interested in learning more about the above specifications feel free to read our original Thunderbird review.

The 1.1GHz parts will most likely be produced exclusively in AMD's Fab30 plant in Dresden and thus will feature copper interconnects. As we mentioned in our Duron review, currently, the only way to differentiate between a Thunderbird manufactured in Dresden with copper interconnects and one manufactured in Austin with aluminum interconnects is by looking at the tint of the die itself. AMD uses a different polisher at their Dresden plant than they do at their Austin plant, the result being that all CPUs that come out of Dresden have a bluish-purple tint, which is what you will see on the 1.1GHz processors.

CPU Specification Comparison
 
AMD Athlon
Intel Pentium III
Intel Celeron
Core
K7
K75
Thunderbird
Katmai
Coppermine
Mendocino
Coppermine128

Clock Speed

500 - 700 MHz
750 - 1000 MHz
450 - 600 MHz
500 - 1133 MHz
300 - 533 MHz
533 - 600 MHz
L1 Cache
128KB
32KB
L2 Cache
512KB
256KB
512KB
256KB
128KB
L2 Cache speed
1/2 core
2/5 or 1/3 core
core clock
1/2 core
core clock
L2 Cache bus
64-bit
256-bit
64-bit
256-bit
System Bus
100 MHz DDR (200 MHz effective) EV6
100 - 133 MHz GTL+
66 MHz GTL+
Interface
Slot-A
Socket-A
Slot-A (OEM only)
Slot-1
Slot-1
Socket-370
Socket-370
Manufacturing
Process
0.25 micron
0.18 micron
0.25 micron
0.18 micron
0.25 micron
0.18 micron
Die Size
184 mm^2
102mm^2
120mm^2
128mm^2
106mm^2
153mm^2
106mm^2
Transistor Count
22 million
37 million
9.5 million
28 million
19 million
28 million

AMD has updated their Ordering Part Numbers (OPN), which can be used to identify the specifications of any of their PGA processors. The more simplified code is described below as well as a picture of the markings from our 1.1GHz part:

Index Cooling the Chip

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