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In November 1999, 24 systems appeared in the TOP500 list.

Rank	System	Procs	Memory(GB)	Rmax (GFlops)	Rpeak (GFlops)	Vendor
11	T3E900	876	N/A	552	788.4	Cray Inc.
13	T3E1200	636	N/A	526	763.2	Cray Inc.
14	T3E1200	612	N/A	509	734.4	Cray Inc.
49	T3E900	348	N/A	218	313.2	Cray Inc.
50	VPP700/116	116	N/A	213	255.2	Fujitsu
64	SP PC604e 332 MHz	468	N/A	143.3	310.7	IBM
88	SP P2SC 160 MHz	252	N/A	109.9	161.2	IBM
102	VPP700/48E	48	N/A	97.5	115.2	Fujitsu
107	SP PC604e 332 MHz	302	N/A	93.1	200.5	IBM
113	SP P2SC 160 MHz	190	N/A	83.5	121.6	IBM
127	SP P2SC 160 MHz	178	N/A	78.4	113.9	IBM
176	SR2201/256	256	N/A	58.68	76.8	Hitachi
183	SP PC604e 332 MHz	184	N/A	57.51	122.17	IBM
192	SP Power3 200 MHz	92	N/A	56	73.6	IBM
200	ORIGIN 2000 250 MHz	128	N/A	51.44	64	SGI
275	SP PC604e 332 MHz	148	N/A	46.6	98.29	IBM
287	SP PC604e 332 MHz	140	N/A	44.27	92.96	IBM
323	HPC 10000 400 MHz	64	N/A	43.82	51.2	Sun
346	SP Power3 200 MHz	68	N/A	42.2	54.4	IBM
417	SP PC604e 332 MHz	118	N/A	37.57	78.35	IBM
430	HPC 10000 400 MHz	54	N/A	37.18	43.2	Sun
438	HPC 10000 400 MHz	52	N/A	35.83	41.6	Sun
468	HPC 10000 333 MHz	64	N/A	34.17	42.62	Sun
469	HPC 10000 333 MHz	64	N/A	34.17	42.62	Sun

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