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In June 2007, 23 systems appeared in the TOP500 list.

Rank System Procs Memory(GB) Rmax (GFlops) Rpeak (GFlops) Vendor
14 TSUBAME Grid Cluster
Sun Fire x4600 Cluster, Opteron 2.4/2.6 GHz and ClearSpeed Accelerator, Infiniband		 11088 21248 48880 78796.8 NEC/Sun
20 Earth-Simulator 5120 N/A 35860 40960 NEC
37 Blue Protein
eServer Blue Gene Solution		 8192 N/A 18665 22937.6 IBM
40 KEK/BG MOMO
eServer Blue Gene Solution		 8192 N/A 18665 22937.6 IBM
41 KEK/BG Sakura
eServer Blue Gene Solution		 8192 N/A 18665 22937.6 IBM
51 SR11000-J2 128 16384 15811 18841.6 Hitachi
59 Altix 4700 1.6 GHz 2560 3000 14593 16384 SGI
76 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink 2048 N/A 11814 13107 SGI
86 PACS-CS
PACS-CS, low voltage Xeon 2.8 GHz, 3D Hyper-Crossbar		 2560 5120 10350 14336 Hitachi/Fujitsu
93 KEK/BG UME
eServer Blue Gene Solution		 4096 N/A 9433 11468.8 IBM
103 SR11000-K1/80 80 N/A 9036 10752 Hitachi
104 SR11000-K1/80 80 N/A 9036 10752 Hitachi
111 RIKEN Super Combined Cluster 2048 N/A 8728 12534 Fujitsu
178 PRIMEPOWER HPC2500 (2.08 GHz) 1664 12288 6860 13844 Fujitsu
194 BladeCenter HS21 Cluster, Xeon dual core, 3 GHz, GigEthernet, Windows OS 1760 N/A 6521 21120 IBM
201 SR11000-K2 50 N/A 6272 7360 Hitachi
217 AIST Super Cluster P-32
AIST Super Cluster P-32, Opteron 2.0 GHz, Myrinet		 2200 N/A 6155 8800 IBM
252 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, 10GigEthernet 1024 12200 6007.05 6553 SGI
291 PRIMEPOWER HPC2500 (1.3 GHz) 2304 N/A 5406 11980 Fujitsu
329 SR11000-J1/50 50 N/A 4993 6080 Hitachi
383 eServer Blue Gene Solution 2048 524 4713 5734 IBM
404 SR11000-K1/40 40 N/A 4596 5376 Hitachi
416 PRIMEPOWER HPC2500 (1.56 GHz) 1472 N/A 4552 9185 Fujitsu