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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Scumbria who wrote (37042)	9/15/1998 5:19:00 PM
From: Petz	Read Replies (1) \| Respond to of 1570549

Revised K6-3 performance predictions. Based on Ten..'s assumption that a 256K cache experiences sqrt(2) more misses than a 512K cache, here's the predicted performance of a K6-2-400 (two cases) and K6-3-400 (three cases). The hardware assumed is the hardware in the "Big CPU Shootout" at tomshardware.com. Also, I now accounted for bus overclocking where applicable (SDRAM overclocking was already accounted for.) For the K6-3 on a 512K cache motherboard, the assumption was 25% hits in the L3 cache. For the 1024K cache motherboard, 50%. Again, I have assumed 5% core CPU improvement in the K6-3, which translates into a 2% benchmark score improvement. The prediction accuracy of the model over the training set is 0.12 Winbench points RMS. Expected Winbench 98/Windows 98 Performance ------------------------------------------- CPU_TYPE NO CACHE 512K CACHE 1024K COMMENTS K6-2-350 ... 27.12 27.43 27.1 actual (512K) K6-2-400 ... 28.30 28.64 PII-350=28.3 -400=30.8 K6-2-450 ... 29.30 29.66 29.1 measured on slower HW K6-3-350 30.31 30.66 30.88 K6-3-400 31.93 32.33 32.57 PII-450=31.4, PII-504/112=33.5 PII-500/100 est =33.2 K6-3-450 33.32 33.75 34.01 It is clear that the K6-3 scales up much better than the K6-2. FYI, a K6-3-400 has the following breakdown of benchmark time: 53% I/O and graphics wait time (a0 term) 33% CPU and L1 time (ap term) 4.7% L2 time (ac term) -- this term 3-4 times higher for K6-2 8.6% L3 and memory access (am term) As you can see, Business Winbench 98 is dominated by non-CPU issues.

To: Scumbria who wrote (37042)	9/15/1998 6:01:00 PM
From: Paul Engel	Read Replies (1) \| Respond to of 1570549

Scumbria - Re: " When can we expect to see KNI included in Intel's intro-level product line? " Do you mean the low end? The low end segment is not the gaming segment, so I doubt that Intel will waste the KNI on cheap chips. The Katmai will be introduced in Q1 of next year - at 450 and 500 MHz - at the high end of the price spectrum. This should end up in PCs that only cost $1800 to $2499. Real game afficionados will eat them up. Remember - Intel makes money by selling high technology at a good price. They are not in a non-profit business like AMD is. Paul