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All Chipsets For AMD Opteron Compared

Duel of the Titans: Opteron vs. Xeon
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Manufacturer AMD AMD AMD
Processor Opteron w/Hammer Core Athlon XP w/Barton Core Athlon XP w/Thoroughbred "B" Core
Introduction April 22, 2003 March 10, 2003 Q3, 2002
Clock Frequencies 1.8 - 3.xx GHz 2.16 - 2.xx GHz 1.86 - 2.66 GHz
Process technology 0.13 µm 0.13 µm 0.13 µm
Die size 193 mm² 101 mm² 84 mm²
Number of Gates 54.3 Million 37.5 Million
Platform Socket940 Socket462 Socket462
CPU Bus Clock (Front Side Bus) - 166 MHz / 333 MHz DDR 133/166 MHz / 266/333 MHz DDR
L1 Execution Cache Size 64 kB 64 kB 64 kB
Execution Pre Decode? no no no
L1 Data Cache Size 64 kB 64 kB 64 kB
Hardware Data Prefetch yes yes yes
L1 Cache Clock core clock core clock core clock
L1 Data Cache Bus Width 64 bit 64 bit 64 bit
L2 Cache Size 1024 kB 512 kB 256 kB
L2 Cache Clock core clock core clock core clock
L2 Cache Addressable Range 64 GB 64 GB 64 GB
Processor Data Bus Width 64 bit 64 bit 64 bit
Platform Support
Chipsets AMD 8131 VIA KT333 to KT400
SiS 735 and SiS 745
Nvidia nForce, nForce 2
AMD 750 and 760
VIA KT333 to KT400
SiS 735 and SiS 745
Nvidia nForce, nForce 2
AMD 750 and 760
Type of Memory DDR-SDRAM (Dual) DDR-SDRAM SDRAM, DDR-SDRAM
Memory Clock 166 MHz 133/166/200 MHz 100/133/166/200 MHz
Instruction Extensions
MMX yes yes yes
Enhanced 3DNow! yes yes yes
3DNow! Professional yes yes yes
SSE yes yes yes
SSE2 yes no no
Electrical Specifications
SMP-Support yes no ('not officially endorsed or supported') no ('not officially endorsed or supported')
Core Voltage 1.65 Volt 1.65 Volt 1.65 Volt
Thermal Protection (Thermal Diode) yes yes yes
Integrated Thermal Protection Logic yes no, requires logic on motherboard no, requires logic on motherboard
Manufacturer AMD AMD AMD
Processor Athlon XP w/Thoroughbred Core "A" Core Athlon XP
w/Palomino Core
Athlon
w/Thunderbird Core
Introduction Q2, 2002 October 9, 2001 October 9, 2001
Clock Frequencies 1.46 - 1.80 GHz 1.2 - 1.80 GHz 0.65 - 1.40 GHz
Process technology 0.13 µm 0.18 µm 0.18 µm
Die size 80 mm² 128 mm² 128 mm²
Number of Gates 37.5 Million 37.5 Million 37.5 Million
Platform Socket462 Socket462 Socket462
CPU Bus Clock (Front Side Bus) 133 MHz / 266 MHz DDR 133 MHz / 266 MHz DDR 100/133 MHz ; 266 MHz DDR
L1 Execution Cache Size 64 kB 64 kB 64 kB
Execution Pre Decode? no no no
L1 Data Cache Size 64 kB 64 kB 64 kB
Hardware Data Prefetch yes yes yes
L1 Cache Clock core clock core clock core clock
L1 Data Cache Bus Width 64 bit 64 bit 64 bit
L2 Cache Size 256 kB 256 kB 256 kB
L2 Cache Clock core clock core clock core clock
L2 Cache Addressable Range 64 GB 64 GB 64 GB
Processor Data Bus Width 64 bit 64 bit 64 bit
Platform Support
Chipsets VIA KT133A to KT400
SiS 735 and SiS 745
ALi Magik 1
Nvidia nForce, nForce 2
AMD 750 and 760
VIA KT133 to KT400
SiS 735 and SiS 745
ALi Magik 1
Nvidia nForce, nForce 2
AMD 750 and 760
VIA KT133 to KT400
SiS 735 and SiS 745
ALi Magik 1
Nvidia nForce, nForce 2
AMD 750 and 760
Type of Memory SDRAM, DDR-SDRAM SDRAM, DDR-SDRAM SDRAM, DDR-SDRAM
Memory Clock 100/133/166/200 MHz 100/133/166 MHz 100/133/166 MHz
Instruction Extensions
MMX yes yes yes
Enhanced 3DNow! yes yes yes
3DNow! Professional yes yes yes
SSE yes yes yes
SSE2 no no no
Electrical Specifications
SMP-Support no ('not officially endorsed or supported') no ('not officially endorsed or supported') no ('not officially endorsed or supported')
Core Voltage 1.65 Volt 1.75 Volt 1.75 Volt
Thermal Protection (Thermal Diode) yes yes no
Integrated Thermal Protection Logic no, requires logic on motherboard no, requires logic on motherboard no
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