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In November 2008, 45 systems appeared in the TOP500 list.

Rank System Procs Memory(GB) Rmax (GFlops) Rpeak (GFlops) Vendor
22 Power 575, p6 4.7 GHz, Infiniband 8320 N/A 92980 156416 IBM
47 HECToR
Cray XT4, 2.8 GHz		 11328 33200 54648 63436.8 Cray Inc.
78 Cray XT3, 2.6 GHz dual Core 7812 N/A 33929.4 40622.4 Cray Inc.
87 BlueCrystal
xSeries x3450 Cluster Xeon quad core, 2.8 GHz, Infiniband		 3360 N/A 28775 37632 ClusterVision/IBM
142 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 3480 N/A 22385 41760 HP
146 Cluster Platform 3000 BL460c, Xeon 54xx 2.5 GHz, GigEthernet 4096 N/A 21905.7 40960 HP
153 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 3352 N/A 21572 40224 HP
157 Cluster Platform 3000 BL460c, Xeon E54xx 2.33 GHz, GigEthernet 4256 N/A 21201 39665.9 HP
164 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 3200 N/A 20605.4 38400 HP
165 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 3200 N/A 20605.4 38400 HP
172 Merlin
Novascale R422 Cluster, Xeon E5472, 3.00 GHz, Infiniband		 2048 4096 20120 24576 Bull
175 BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet 2800 N/A 20051 28000 IBM
188 Cluster Platform 3000 BL460c, Xeon 54xx 2.66GHz, GigEthernet 3408 N/A 19493.8 36356.5 HP
191 Cluster Platform 3000 BL460c, Xeon E54xx 2.83 GHz, GigEthernet 3184 N/A 19341.8 36042.9 HP
195 Cluster Platform 3000 BL460c, Xeon E54xx 2.33 GHz, GigEthernet 3824 N/A 19079.8 35639.7 HP
197 Cluster Platform 3000 BL460c, Xeon L54xx 2.83 GHz, GigEthernet 3120 N/A 18957.5 35318.4 HP
200 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2940 N/A 18949.6 35280 HP
201 PowerEdge 1950, Xeon 51xx 3.06 GHz, Infinipath 1992 8192 18930 24382 ClusterVision/Dell
215 BladeCenter HS21 Cluster, Xeon dual core, 3.0 GHz, GigEthernet 3840 N/A 18600 46080 IBM
235 Darwin
PowerEdge 1950, 3.0 GHz, Infinipath		 2340 N/A 18270 28080 ClusterVision/Dell
237 BladeCenter HS21 Cluster, Xeon QC HT 3 GHz, Infiniband 2016 N/A 18089.1 24192 IBM
252 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2704 N/A 17567.1 32448 HP
276 BladeCenter HS21 Cluster, Xeon dual core 2.66 GHz, GigEthernet 3528 N/A 17088.8 37636.7 IBM
284 Cluster Platform 3000 BL460c, Xeon 51xx 2.66GHz, GigEthernet 2928 N/A 16778.2 31235.9 HP
307 eServer pSeries p5 575 1.9 GHz 2480 N/A 16202 18848 IBM
308 eServer pSeries p5 575 1.9 GHz 2480 N/A 16202 18848 IBM
318 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2432 N/A 16101.2 29184 HP
331 Cluster Platform 3000 BL460c, Xeon L54xx 2.5 GHz, GigEthernet 2980 N/A 16003.8 29800 HP
332 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 3200 N/A 16003.6 29824 HP
341 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2384 N/A 15835.5 28608 HP
342 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2384 N/A 15835.5 28608 HP
348 Cluster Platform 3000 BL460c, Xeon L54xx 2.5 GHz, GigEthernet 2940 N/A 15791.3 29400 HP
352 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2368 N/A 15746.5 28416 HP
375 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 2280 N/A 15252.7 27360 HP
385 BladeCenter HS21 Cluster, Xeon quad core 2.66 GHz, Infiniband 1792 N/A 14910 19066 IBM
391 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 6000 N/A 14775 26400 IBM
393 Cluster Platform 4000 BL685c, Opteron QC 2.3GHz, Infiniband 2048 N/A 14677.6 18841.6 HP
438 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 2768 N/A 13904.1 25797.8 HP
466 Cluster Platform 4000 BL465c, Opteron DC 2.4GHz, GigEthernet 5200 N/A 13423.5 24960 HP
472 Cluster Platform 3000 BL460c, Xeon 53xx 1.86GHz, GigEthernet 3328 N/A 13280 24760.3 HP
474 Cluster Platform 3000 BL460c, Xeon 54xx 2.83 GHz, GigEthernet 2064 N/A 13216.8 23364.5 HP
475 Cluster Platform 3000 BL460c, Xeon 54xx 2.83 GHz, GigEthernet 2064 N/A 13216.8 23364.5 HP
481 Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet 1912 N/A 13113 22944 HP
491 eServer pSeries p5 575 1.5 GHz 2560 N/A 12940 15360 IBM
493 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband 1392 N/A 12862.1 16704 HP