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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 207.67

+2.2%

Jan 12 3:59 PM EST

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To: Joe NYC who wrote (78322)	4/24/2002 11:17:14 PM
From: wanna_bmw	Read Replies (1) of 275872

Joe, Re: " I don't think AXP improvement over Willamette or Northwood is 42.8%, running at the same clock speed." I did a couple of calculations on Tom's Hardware article. tomshardware.com I compared the 1.73GHz Athlon XP with the 1.7GHz Willamette. To estimate Northwood, I multiply the result by the percentage that the 2.0A beats the 2.0 in each app, and I also include the percentage that the 2.4B beats the 2.4A in each app. The parenthesis represent negative IPC gains. Quake III NV15 Demo 1024x768 Athlon XP 2100+ - 63.3 Pentium 4 1.7GHz - 49.2 Athlon IPC advantage - 28.7% Add 9.1% Northwood Improvement - 53.7 Athlon IPC advantage - 17.9% Add 12.0% 533MHz FSB Improvement - 60.1 Athlon IPC advantage - 5.3% FlasK DivX 5.0 Encoding Athlon XP 2100+ - 45.5 Pentium 4 1.7GHz - 38.3 Athlon IPC advantage - 18.8% Add 5.6% Northwood Improvement - 40.4 Athlon IPC advantage - 12.6% Add 8.3% 533MHz FSB Improvement - 43.8 Athlon IPC advantage - 3.9% Lightwave 7B Athlon XP 2100+ - 364.5 Pentium 4 1.7GHz - 338.5 Athlon IPC advantage - (7.1%) Add 5.7% Northwood Improvement - 320.2 Athlon IPC advantage - (12.2%) Add 0.7% 533MHz FSB Improvement - 318.0 Athlon IPC advantage - (12.8%) Cinema 4D Athlon XP 2100+ - 226 Pentium 4 1.7GHz - 381 Athlon IPC advantage - 68.6% Add 25.6% Northwood Improvement - 303 Athlon IPC advantage - 34.1% Add 1.4% 533MHz FSB Improvement - 299 Athlon IPC advantage - 32.3% SysMark 2002 Athlon XP 2100+ - 189 Pentium 4 1.7GHz - 170 Athlon IPC advantage - 11.2% Add 11.3% Northwood Improvement - 189 Athlon IPC advantage - 0% Add 5.3% 533MHz FSB Improvement - 200 Athlon IPC advantage - (5.5%) 3D Studio R4.2 Athlon XP 2100+ - 148 Pentium 4 1.7GHz - 216 Athlon IPC advantage - 45.9% Add 2.2% Northwood Improvement - 211 Athlon IPC advantage - 42.6% Add 0.0% 533MHz FSB Improvement - 211 Athlon IPC advantage - 42.6% I would say 3D Studio MAX reaches your extreme case, and Cinema 4D also gives AMD a >30% advantage, even with Northwood's improvements. However, a number of new software benchmarks, Intel optimized apps, and Intel favored apps seem to shrink the Athlon IPC advantage down to 5% or less, and in some cases negative. It's helpful to add those data points to the set, which should indicate right away that even a 25% IPC advantage in Hammer isn't likely going to allow AMD to soar over Intel in all apps (though the addition of SSE-2 may help it in some apps like Lightwave 7B). wbmw

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