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TOP500 List - June 2015

R_max and R_peak values are in TFlop/s. For more details about other fields, check the TOP500 description.

R_peak values are calculated using the advertised clock rate of the CPU. For the efficiency of the systems you should take into account the Turbo CPU clock rate where it applies.

Rank	System	Cores	Rmax (TFlop/s)	Rpeak (TFlop/s)	Power (kW)
1	Tianhe-2A - TH-IVB-FEP Cluster, Intel Xeon E5-2692 12C 2.200GHz, TH Express-2, Intel Xeon Phi 31S1P, NUDT National Super Computer Center in Guangzhou China	3,120,000	33,862.70	54,902.40	17,808
2	Titan - Cray XK7, Opteron 6274 16C 2.200GHz, Cray Gemini interconnect, NVIDIA K20x, Cray/HPE DOE/SC/Oak Ridge National Laboratory United States	560,640	17,590.00	27,112.55	8,209
3	Sequoia - BlueGene/Q, Power BQC 16C 1.60 GHz, Custom, IBM DOE/NNSA/LLNL United States	1,572,864	17,173.22	20,132.66	7,890
4	K computer, SPARC64 VIIIfx 2.0GHz, Tofu interconnect, Fujitsu RIKEN Advanced Institute for Computational Science (AICS) Japan	705,024	10,510.00	11,280.38	12,660
5	Mira - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM DOE/SC/Argonne National Laboratory United States	786,432	8,586.61	10,066.33	3,945
6	Piz Daint - Cray XC30, Xeon E5-2670 8C 2.600GHz, Aries interconnect , NVIDIA K20x, Cray/HPE Swiss National Supercomputing Centre (CSCS) Switzerland	115,984	6,271.00	7,788.85	1,754
7	Shaheen II - Cray XC40, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Cray/HPE King Abdullah University of Science and Technology Saudi Arabia	196,608	5,536.99	7,235.17	2,834
8	Stampede - PowerEdge C8220, Xeon E5-2680 8C 2.700GHz, Infiniband FDR, Intel Xeon Phi SE10P, DELL EMC Texas Advanced Computing Center/Univ. of Texas United States	462,462	5,168.11	8,520.11	4,510
9	JUQUEEN - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM Forschungszentrum Juelich (FZJ) Germany	458,752	5,008.86	5,872.03	2,301
10	JUQUEEN - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM Forschungszentrum Juelich (FZJ) Germany	458,752	5,008.86	5,872.03	2,301
11	Vulcan - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM DOE/NNSA/LLNL United States	393,216	4,293.31	5,033.16	1,972
12	Pleiades - SGI ICE X, Intel Xeon E5-2670/E5-2680v2/E5-2680v3 2.6/2.8/2.5 GHz, Infiniband FDR, HPE NASA/Ames Research Center/NAS United States	185,344	4,089.43	4,970.91	3,380
13	Abel - Cray XC30, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Cray/HPE Petroleum Geo-Services United States	145,920	4,042.46	5,369.86	1,800
14	Cray CS-Storm, Intel Xeon E5-2660v2 10C 2.2GHz, Infiniband FDR, Nvidia K40, Cray/HPE Government United States	72,800	3,577.00	6,131.84	1,499
15	Cray CS-Storm, Intel Xeon E5-2660v2 10C 2.2GHz, Infiniband FDR, Nvidia K40, Cray/HPE Government United States	72,800	3,577.00	6,131.84	1,499
16	Topaz - SGI ICE X, Xeon E5-2699v3 18C 2.3GHz, Infiniband FDR, HPE ERDC DSRC United States	124,200	3,318.95	4,570.56	5,175
17	HPC2 - iDataPlex DX360M4, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband FDR, NVIDIA K20x, IBM Eni S.p.A. Italy	72,000	3,188.00	4,605.00	1,227
18	Cray XC30, Intel Xeon E5-2697v2 12C 2.7GHz, Aries interconnect , Cray/HPE Government United States	225,984	3,143.52	4,881.25	6,328
19	Thunder - SGI ICE X, Xeon E5-2699v3 18C 2.3GHz, Infiniband FDR, HPE Air Force Research Laboratory United States	115,668	3,126.24	4,256.58
20	SuperMUC - iDataPlex DX360M4, Xeon E5-2680 8C 2.70GHz, Infiniband FDR, IBM/Lenovo Leibniz Rechenzentrum Germany	147,456	2,897.00	3,185.05	3,423
21	SuperMUC Phase 2 - IBM NeXtScale nx360M5, Xeon E5-2697v3 14C 2.6GHz, Infiniband FDR14, Lenovo/IBM Leibniz Rechenzentrum Germany	86,016	2,813.62	3,578.27	1,481
22	TSUBAME 2.5 - Cluster Platform SL390s G7, Xeon X5670 6C 2.93GHz, Infiniband QDR, NVIDIA K20x, NEC/HPE GSIC Center, Tokyo Institute of Technology Japan	76,032	2,785.00	5,735.69	1,399
23	Hazel Hen - Cray XC40, Xeon E5-2680v3 12C 2.5GHz, Aries interconnect , Cray/HPE HLRS - Höchstleistungsrechenzentrum Stuttgart Germany	94,608	2,763.00	3,784.32	1,512
24	Tianhe-1A - NUDT YH MPP, Xeon X5670 6C 2.93 GHz, NVIDIA 2050, NUDT National Supercomputing Center in Tianjin China	186,368	2,566.00	4,701.00	4,040
25	cascade - Atipa Visione IF442 Blade Server, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, Intel Xeon Phi 5110P, Atipa Technology DOE/SC/Pacific Northwest National Laboratory United States	194,616	2,539.13	3,388.03	1,384
26	Excalibur - Cray XC40, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Cray/HPE Army Research Laboratory DoD Supercomputing Resource Center (ARL DSRC) United States	100,064	2,485.00	3,682.36	1,466
27	Plasma Simulator - Fujitsu PRIMEHPC FX100, SPARC64 XIfx 32C 1.98GHz, Tofu interconnect 2, Fujitsu National Institute for Fusion Science (NIFS) Japan	82,944	2,376.00	2,621.03	1,244
28	Makman-2 - Dell PowerEdge R630, Xeon E5-2680v3 12C 2.5GHz, Infiniband QDR, DELL EMC Saudi Aramco Saudi Arabia	76,032	2,249.68	3,041.28	1,134
29	Pangea - SGI ICE X, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, HPE Total Exploration Production France	110,400	2,098.09	2,296.32	2,118
30	Tianhe-2 LvLiang Solution - Tianhe-2 LvLiang, Intel Xeon E5-2692v2 12C 2.2GHz, TH Express-2, Intel Xeon Phi 31S1P, NUDT LvLiang Cloud Computing Center China	174,720	2,071.39	3,074.53	997
31	Lomonosov 2 - T-Platform A-Class Cluster, Xeon E5-2697v3 14C 2.6GHz, Infiniband FDR, Nvidia K40m, T-Platforms Moscow State University - Research Computing Center Russia	37,120	1,849.00	2,575.87
32	Fermi - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM CINECA Italy	163,840	1,788.88	2,097.15	822
33	SwiftLucy - Cluster Platform 3000 BL460c Gen9, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, HPE Government United States	57,600	1,703.28	2,304.00	2,880
34	Edison - Cray XC30, Intel Xeon E5-2695v2 12C 2.4GHz, Aries interconnect , Cray/HPE DOE/SC/LBNL/NERSC United States	133,824	1,654.70	2,569.42	3,747
35	ARCHER - Cray XC30, Intel Xeon E5 v2 12C 2.700GHz, Aries interconnect , Cray/HPE EPSRC/University of Edinburgh United Kingdom	118,080	1,642.54	2,550.53	3,306
36	Occigen - bullx DLC, Xeon E5-2690v3 12C 2.6GHz, Infiniband FDR, EVIDEN Grand Equipement National de Calcul Intensif - Centre Informatique National de l'Enseignement Suprieur (GENCI-CINES) France	50,544	1,628.77	2,102.63	935
37	Power 775, POWER7 8C 3.836GHz, Custom Interconnect, IBM IBM Development Engineering United States	62,944	1,587.00	1,931.62	3,576
38	Cray XC30, Intel Xeon E5-2697v2 12C 2.7GHz, Aries interconnect , Cray/HPE ECMWF United Kingdom	83,160	1,552.00	1,796.26
39	Cray XC30, Intel Xeon E5-2697v2 12C 2.7GHz, Aries interconnect , Cray/HPE ECMWF United Kingdom	83,160	1,552.00	1,796.26
40	Salomon - SGI ICE X, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, Intel Xeon Phi 7120P, HPE IT4Innovations National Supercomputing Center, VSB-Technical University of Ostrava Czechia	76,896	1,457.73	2,011.64	4,806
41	Blue Joule - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM Science and Technology Facilities Council - Daresbury Laboratory United Kingdom	131,072	1,431.10	1,677.72	657
42	Spirit - SGI ICE X, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, HPE Air Force Research Laboratory United States	73,584	1,415.47	1,530.55	1,606
43	Beskow - Cray XC40, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Cray/HPE KTH - Royal Institute of Technology Sweden	53,632	1,397.00	1,973.66	786
44	Curie thin nodes - Bullx B510, Xeon E5-2680 8C 2.700GHz, Infiniband QDR, EVIDEN CEA/TGCC-GENCI France	77,184	1,359.00	1,667.17	2,132
45	Conrad - Cray XC40, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Intel Xeon Phi 5120D, Cray/HPE Navy DSRC United States	61,256	1,285.60	2,049.60	2,324
46	Gordon - Cray XC40, Xeon E5-2698v3 16C 2.3GHz, Aries interconnect , Intel Xeon Phi 5120D, Cray/HPE Navy DSRC United States	61,256	1,285.60	2,049.60	2,324
47	iDataPlex DX360M4, Intel Xeon E5-2680v2 10C 2.800GHz, Infiniband FDR, Lenovo/IBM Max-Planck-Gesellschaft MPI/IPP Germany	65,320	1,283.31	1,463.17	1,260
48	Nebulae - Dawning TC3600 Blade System, Xeon X5650 6C 2.66GHz, Infiniband QDR, NVIDIA 2050, Sugon National Supercomputing Centre in Shenzhen (NSCS) China	120,640	1,271.00	2,984.30	2,580
49	Prometheus - HP Apollo 8000, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, HPE Cyfronet Poland	41,472	1,262.40	1,658.88
50	Yellowstone - iDataPlex DX360M4, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, IBM National Center for Atmospheric Research (NCAR) United States	72,288	1,257.62	1,503.59	1,437
51	Sisu - Cray XC40, Xeon E5-2690v3 12C 2.6GHz, Aries interconnect , Cray/HPE CSC (Center for Scientific Computing) Finland	40,608	1,250.00	1,689.29	680
52	Helios - Bullx B510, Xeon E5-2680 8C 2.700GHz, Infiniband QDR, EVIDEN International Fusion Energy Research Centre (IFERC), EU(F4E) - Japan Broader Approach collaboration Japan	70,560	1,237.00	1,524.10	2,200
53	SORA-MA - Fujitsu PRIMEHPC FX100, SPARC64 XIfx 32C 1.98GHz, Tofu interconnect 2, Fujitsu Japan Aerospace eXploration Agency Japan	41,472	1,189.00	1,310.52
54	Sekirei - SGI ICE XA, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, HPE University of Tokyo/Institute for Solid State Physics Japan	38,016	1,178.30	1,520.64	581
55	Garnet - Cray XE6, Opteron 16C 2.500GHz, Cray Gemini interconnect, Cray/HPE ERDC DSRC United States	150,528	1,167.00	1,505.28	5,569
56	Mistral - bullx DLC 720, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, EVIDEN DKRZ - Deutsches Klimarechenzentrum Germany	37,344	1,139.24	1,493.76
57	Cielo - Cray XE6, Opteron 6136 8C 2.40GHz, Custom, Cray/HPE DOE/NNSA/LANL/SNL United States	142,272	1,110.00	1,365.81	3,980
58	Magnus - Cray XC40, Xeon E5-2690v3 12C 2.6GHz, Aries interconnect , Cray/HPE Pawsey Supercomputing Centre, Kensington, Western Australia Australia	35,712	1,097.56	1,485.62	698
59	Cartesius 2 - Bullx DLC B710/B720 Blades, Xeon E5-2695 v2 2.4GHz E5-2690v3 2.6GHz, Infiniband FDR, EVIDEN SURFsara Netherlands	38,880	1,088.51	1,327.10	706
60	Turing - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM CNRS/IDRIS-GENCI France	98,304	1,073.33	1,258.29	493
61	DiRAC - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM University of Edinburgh United Kingdom	98,304	1,073.33	1,258.29	493
62	Hopper - Cray XE6, Opteron 6172 12C 2.10GHz, Custom, Cray/HPE DOE/SC/LBNL/NERSC United States	153,408	1,054.00	1,288.63	2,910
63	QB-2 - Dell C8220X Cluster, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband FDR, NVIDIA K20x, DELL EMC Louisiana Optical Network Initiative United States	23,040	1,052.00	1,473.60	500
64	Tera-100 - Bull bullx super-node S6010/S6030, EVIDEN Commissariat a l'Energie Atomique (CEA) France	138,368	1,050.00	1,254.55	4,590
65	Oakleaf-FX - PRIMEHPC FX10, SPARC64 IXfx 16C 1.848GHz, Tofu interconnect, Fujitsu Information Technology Center, The University of Tokyo Japan	76,800	1,043.00	1,135.41	1,177
66	Taurus - bullx DLC 720, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, EVIDEN TU Dresden, ZIH Germany	34,656	1,029.94	1,386.24	582
67	QUARTETTO - HA8000-tc HT210/PRIMERGY CX400 Cluster, Xeon E5-2680 8C 2.700GHz, Infiniband FDR, NVIDIA K20/K20x, Xeon Phi 5110P, Hitachi/Fujitsu Research Institute for Information Technology, Kyushu University Japan	222,072	1,018.00	1,502.24	19,431
68	Discover SCU10 - Rackable Cluster, Xeon E5-2697v3 14C 2.6GHz, Infiniband FDR, HPE NASA/Goddard Space Flight Center United States	31,248	1,000.52	1,299.92	2,009
69	Konrad - Cray XC40, Intel Xeon E5-2695v2/E5-2680v3 12C 2.4/2.5GHz, Aries interconnect , Cray/HPE HLRN at ZIB/Konrad Zuse-Zentrum Berlin Germany	44,928	991.52	1,425.71	878
70	HOKUSAI GreatWave - Fujitsu PRIMEHPC FX100, SPARC64 XIfx 32C 1.98GHz, Tofu interconnect 2, Fujitsu Advanced Center for Computing and Communication, RIKEN Japan	34,560	989.60	1,092.10	518
71	Fujitsu PRIMEHPC FX100, SPARC64 XIfx 32C 1.98GHz, Tofu interconnect 2, Fujitsu Meteorological Research Institute, Japan Meteorological Agency Japan	34,560	989.60	1,092.10	518
72	Fujitsu PRIMERGY CX250 S1, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, Fujitsu National Computational Infrastructure, Australian National University Australia	53,504	978.60	1,112.88	1,605
73	Conte - Cluster Platform SL250s Gen8, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, Intel Xeon Phi 5110P, HPE Purdue University United States	77,520	976.76	1,341.10	510
74	Spruce A - SGI ICE X, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband FDR, HPE AWE United Kingdom	44,520	958.73	997.25	855
75	Lightning - Cray XC30, Intel Xeon E5-2697v2 12C 2.7GHz, Aries interconnect , Cray/HPE Air Force Research Laboratory United States	56,112	957.60	1,212.02	1,571
76	Piz Daint Multicore - Cray XC40, Xeon E5-2690v3 12C 2.6GHz, Aries interconnect , Cray/HPE Swiss National Supercomputing Centre (CSCS) Switzerland	30,240	944.80	1,257.98
77	MareNostrum - iDataPlex DX360M4, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, IBM Barcelona Supercomputing Center Spain	48,896	925.06	1,017.04	1,016
78	Lomonosov - T-Platforms T-Blade2/1.1, Xeon X5570/X5670/E5630 2.93/2.53 GHz, Nvidia 2070 GPU, PowerXCell 8i Infiniband QDR, T-Platforms Moscow State University - Research Computing Center Russia	78,660	901.90	1,700.21	2,800
79	SERC - Cray XC40, Xeon E5-2680v3 12C 2.5GHz, Aries interconnect , Cray/HPE Supercomputer Education and Research Centre (SERC), Indian Institute of Science India	31,104	901.51	1,244.16	608
80	BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM Rensselaer Polytechnic Institute United States	81,920	894.44	1,048.58	411
81	Intel SC D2P4 - Cluster Platform 3000 BL460c, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, HPE Intel United States	30,672	833.92	1,226.88	1,534
82	HERMIT - Cray XE6, Opteron 6276 16C 2.30 GHz, Cray Gemini interconnect, Cray/HPE HWW/Universitaet Stuttgart Germany	113,472	831.40	1,043.94
83	Gottfried - Cray XC40, Intel Xeon E5-2695v2 12C 2.4GHz/E5-2680v3 12C 2.5GHz, Aries interconnect , Cray/HPE HLRN at Universitaet Hannover / RRZN Germany	40,320	829.80	1,241.39	788
84	Faris - Cluster Platform SL230s Gen8, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband QDR, HPE Saudi Aramco Saudi Arabia	40,960	816.58	917.50	707
85	Aterui - Cray XC40, Xeon E5-2690v3 12C 2.6GHz, Aries interconnect , Cray/HPE National Astronomical Observatory of Japan Japan	25,440	801.40	1,058.30	569
86	Sunway Blue Light - Sunway BlueLight MPP, ShenWei processor SW1600 975.00 MHz, Infiniband QDR, National Research Center of Parallel Computer Engineering & Technology National Supercomputing Center in Jinan China	137,200	795.90	1,070.16	1,074
87	XStream - Cray CS-Storm, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband FDR, Nvidia K80, Cray/HPE Stanford Research Computing Center United States	14,820	781.30	1,001.69	190
88	Sekirei-ACC - SGI ICE XA, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, Nvidia K40, HPE University of Tokyo/Institute for Solid State Physics Japan	15,552	777.40	1,100.16	255
89	Zin - Xtreme-X GreenBlade GB512X, Xeon E5 (Sandy Bridge - EP) 8C 2.60GHz, Infiniband QDR, Cray/HPE Lawrence Livermore National Laboratory United States	46,208	773.70	961.13	924
90	Tianhe-1A Hunan Solution - NUDT YH MPP, Xeon X5670 6C 2.93 GHz, Proprietary, NVIDIA 2050, NUDT National Super Computer Center in Hunan China	53,248	771.70	1,342.75	1,155
91	Spruce B - SGI ICE X, Intel Xeon E5-2680v2 10C 2.8GHz, Infiniband FDR, HPE AWE United Kingdom	35,640	767.50	798.34	685
92	Endeavor - Intel Cluster, Intel Xeon E5-2697v2 12C 2.700GHz, Infiniband FDR, Intel Xeon Phi 7110, Intel Intel United States	51,392	758.87	933.48	387
93	COMA (PACS-IX) - Cray CS300 1027GR, Intel Xeon E5-2670v2 10C 2.500GHz, Infiniband FDR, Intel Xeon Phi 7110P, Cray/HPE Center for Computational Sciences, University of Tsukuba Japan	55,664	746.00	998.50	366
94	Numerical Materials Simulator - SGI ICE X, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, HPE National Institute for Materials Science Japan	25,056	741.75	1,002.24	405
95	Earth System Numerical Simulator - Sugon Cluster TC4600E-LP, Xeon E5-2680v3 12C 2.5GHz, Infiniband FDR, Sugon LASG/Institute of Atmospheric Physics, CAS China	24,912	738.00	996.48	540
96	iDataPlex DX360M4, Xeon E5-2670 8C 2.600GHz, Infiniband FDR, IBM Indian Institute of Tropical Meteorology India	38,016	719.22	790.73	790
97	Cetus - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM DOE/SC/Argonne National Laboratory United States	65,536	715.55	838.86	329
98	Zumbrota - BlueGene/Q, Power BQC 16C 1.60GHz, Custom, IBM EDF R&D France	65,536	715.55	838.86	329
99	BGQ - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM SOSCIP/LKSAVI/University of Toronto Canada	65,536	715.55	838.86	329
100	EPFL Blue Brain IV - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect, IBM Swiss National Supercomputing Centre (CSCS) Switzerland	65,536	715.55	838.86	329