AMD Travels Through Time: Athlon XP 2800+ with Dual-DDR

Details On The Athlon XP 2800+/2700+

The top model for January 2003: Athlon XP 2800+.

Details about the AMD Athlon XP 2800+.

After considerable discussions and simulations, AMD has finally made it: the FSB clock of 166 MHz has become reality. The chip manufacturer can now offer processors exclusively for the new clock speed, starting with the Athlon XP 2700+. Compared to its predecessor with 133 MHz FSB, the clock speed and bandwidth of the new processor are increased by almost 20%. This gives you 2.6 GB/s (166 MHz x 64 Bit x 2 flanks = 2.6 GB/s), as opposed to 2.1 GB/s.

CPU core Thoroughbred "B" Thoroughbred "A" Palomino
Wafer Surface 31416 mm² 31416 mm² 31416 mm²
Die Surface 84 mm² 80 mm² 128 mm²
Circuit Path Density 0.13 µm 0.13 µm 0.18 µm
Waste (approx.) 18% 18% 18%
Yield 306 pieces/wafer 322 pieces/wafer 201 pieces/wafer

Basically, the two new processors look like the other two CPUs with the Thoroughbred B core. The die surface is still 84 mm², ensuring effective heat transfer between CPU and cooler. For cost reasons, AMD does without a heat spreader. With a core voltage of 1.65 Volt and a clock speed of 2250 MHz (Athlon XP 2800+), the maximal thermal dissipation is 75.3 Watt, while that of the Athlon XP 2700+ (2166 MHz) is 68.3 Watt.

There's no change in the maximum temperature, which is still 85 degrees Celsius. The sample processor does reveal some special aspects, however: for all of the CPUs with the Thoroughbred B core (from Athlon XP 2400+ up to XP 2800+), the thermal diode doesn't work. This means that when there's a cooler defect, the motherboard will not be able to protect the CPU. A correct measurement of the die temperature is not possible.

Intel AMD Availability
P4 3.33 GHz    
    Athlon XP 3000+
P4 3.06 GHz (Hyperthr.)   from November 2002
  Athlon XP 2800+
(41 days)
from January 2003
P4 2.8 GHz
(112 days)
  Athlon XP 2600+
(72 days)
from October 2002
  Athlon XP 2200+ (0.13 µm)
(89 days)
P4 2.53 GHz
(34 days)
P4 2.4 GHz
(85 days)
  Athlon XP 2100+
(65 days)
P4 2.2 GHz (0.13µm)
(133 days)
Athlon XP 2000+
(63 days)
  Athlon XP 1900+
(27 days)
  Athlon XP 1800+
(97 days)
P4 2.0 GHz
(89 days)
  production stopped
  Athlon 1400
(104 days)
production stopped
P4 1.7 GHz
(190 days)
  production stopped
  Athlon 1333
(155 days)
production stopped
P4 1.5 GHz (0.18 µm)   production stopped
  Athlon 1200
(135 days)
production stopped
  Athlon 1000 (0.18 µm) production stopped
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