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In November 2007, 47 systems appeared in the TOP500 list.

Rank System Procs Memory(GB) Rmax (GFlops) Rpeak (GFlops) Vendor
17 HECToR
Cray XT4, 2.8 GHz		 11328 33200 54648 63436.8 Cray Inc.
35 Cray XT3, 2.6 GHz dual Core 7812 N/A 32498 40622 Cray Inc.
51 BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet 3040 N/A 19039.5 27968 IBM
60 Darwin
PowerEdge 1950, 3.0 GHz, Infinipath		 2340 N/A 18270 28080 ClusterVision/Dell
67 eServer pSeries p5 575 1.9 GHz 2480 N/A 16202 18848 IBM
68 eServer pSeries p5 575 1.9 GHz 2480 N/A 16202 18848 IBM
91 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 2768 N/A 13904.1 25797.8 HP
102 eServer pSeries p5 575 1.5 GHz 2560 N/A 12940 15360 IBM
114 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 1704 N/A 11887.2 20448 HP
122 Blue Gene/P Solution 4096 N/A 11110 13926.4 IBM
127 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband 1392 N/A 10857 16704 HP
149 CX1
PowerEdge 1955, 2.66 GHz, Gigabit/10G Infiniband		 1680 1680 10100 17922.2 Dell
154 xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet 1700 N/A 9914.07 20400 IBM
158 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 4000 N/A 9850 17600 IBM
159 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 4000 N/A 9850 17600 IBM
163 Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, GigEthernet 1560 N/A 9732.3 16642.1 HP
178 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 1744 N/A 9392 16254.1 HP
179 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 1304 N/A 9334.3 15648 HP
183 BladeCenter HS21 Cluster, Xeon quad core 2.33 GHz, GigEthernet 1904 N/A 9287 17768.1 IBM
191 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 1464 N/A 9221.6 15618 HP
192 Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet 1464 N/A 9221.6 15618 HP
193 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 1696 N/A 9162.3 15806.7 HP
196 BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband 960 N/A 9058 11520 IBM
215 BladeCenter HS21 Cluster, Xeon dual core 2.66 GHz, GigEthernet 1764 N/A 8705.16 18818.4 IBM
216 BladeCenter HS21 Cluster, Xeon dual core 2.66 GHz, GigEthernet 1764 N/A 8705.16 18818.4 IBM
226 BladeCenter LS21, Opteron Dual Core 2.4 GHz, GigEthernet 3484 N/A 8579 16743 IBM
231 Cluster Platform 3000 BL460c, Xeon 51xx 2.66GHz, GigEthernet 1332 N/A 8461.3 14209.8 HP
235 Cluster Platform 4000 BL465c, Opteron DC 2.4GHz, GigEthernet 3312 N/A 8271.9 15897.6 HP
236 Cluster Platform 4000 BL465c, Opteron DC 2.4GHz, GigEthernet 3300 N/A 8249.1 15840 HP
241 xSeries x3550 Cluster Xeon, 3 GHz, Infiniband 852 N/A 8186.93 10224 IBM
244 xSeries x3550 Cluster Xeon, 3 GHz, Infiniband 848 N/A 8148.49 10176 IBM
246 BladeCenter LS20, Opteron 2.6 GHz Dual core, GigEthernet 3304 N/A 8136 17181 IBM
317 BladeCenter LS21, Opteron Dual Core 2.2 GHz, GigEthernet 3080 N/A 7584.5 13552 IBM
326 Cluster Platform 3000 BL460c, Xeon 51xx 2.66GHz, Infiniband 1068 N/A 7405 11393 HP
327 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 3000 N/A 7387.5 13200 IBM
328 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 3000 N/A 7387.5 13200 IBM
402 Cluster Platform 4000 BL685c, Opteron DC 2.4GHz, Infiniband 1808 N/A 6682 8678 HP
403 Cluster Platform 4000 BL685c, Opteron DC 2.4GHz, Infiniband 1808 N/A 6682 8678 HP
432 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 1128 N/A 6320.4 10513 HP
435 BladeCenter HS21 Cluster, Xeon dual core, 3 GHz, GigEthernet 1280 N/A 6316 15360 IBM
436 BladeCenter HS21 Cluster, Xeon dual core, 3 GHz, GigEthernet 1280 N/A 6316 15360 IBM
437 BladeCenter HS21 Cluster, Xeon dual core, 3 GHz, GigEthernet 1280 N/A 6316 15360 IBM
441 Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet 1120 N/A 6278.7 10438.4 HP
453 BladeCenter LS41, Opteron Dual Core 2.8 GHz, GigEthernet 2520 N/A 6205.5 14112 IBM
455 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 2500 N/A 6156.25 11000 IBM
456 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 2500 N/A 6156.25 11000 IBM
458 Cluster Platform 3000 BL460c, Xeon 51xx 2.33GHz, GigEthernet 1092 N/A 6152.9 10177.4 HP