970:
238:
cores, and its physical packaging is identical to the UltraSPARC III with the exception of one pin. The UltraSPARC III cores were improved in a variety of ways. Instruction fetch, store bandwidth, and data prefetching were optimized. The
280:
manufacturing process. The initial speed of the UltraSPARC IV+ was 1.5 GHz, 0.3 GHz less than the intended 1.8 GHz. In April, 2007 it was increased to 2.1 GHz. It contains 295 million transistors.
24:
540:
224:
276:
The UltraSPARC IV+, released in mid-2005, is also a dual-core design, featuring enhanced processor cores and an on-chip L2 cache. It is fabricated on a 90
1421:
215:
microprocessors. Of the four original designs in the initiative, two reached production: the UltraSPARC IV and the UltraSPARC T1. Whereas the
332:
1232:
522:
284:
Servers using the UltraSPARC IV were released in
September 2004. The UltraSPARC IV+ was released in Sun servers in September 2005.
429:
234:
The UltraSPARC IV was the first multi-core SPARC processor, released in March, 2004. Internally, it implements two modified
1436:
292:
systems all use UltraSPARC IV and IV+ processors. These systems range from 4 to 72 processor sockets (8 to 144 cores).
1277:
296:
495:
266:
200:
The UltraSPARC IV was developed as part of Sun's
Throughput Computing initiative, which included the UltraSPARC V
1441:
1186:
1426:
515:
295:
Servers powered by the UltraSPARC IV+ processor were well received, allowing Sun to regain revenue lead in the
1267:
1431:
1207:
1068:
178:
89:
1386:
994:
1104:
1402:
508:
1391:
1150:
1145:
1048:
935:
354:
1043:
950:
717:
71:
231:, the UltraSPARC IV implemented chip-multithreading (CMP) — multiple single-thread cores.
1237:
955:
925:
382:
258:. Both cores share a L2 cache with a capacity of up to 16 MB but have their own L2 cache tags.
1191:
1109:
481:
472:
1160:
764:
705:
251:
106:
174:. They are the fourth generation of UltraSPARC microprocessors, and implement the 64-bit
8:
1038:
1006:
969:
243:
1155:
404:
255:
1355:
1335:
1290:
270:
171:
55:
451:
1370:
1340:
1320:
1114:
879:
754:
626:
621:
531:
167:
42:
1325:
1063:
636:
631:
616:
611:
1247:
989:
940:
836:
747:
742:
700:
606:
601:
596:
591:
240:
235:
193:
microprocessor in early 2004. It was instead succeeded by the
Fujitsu-designed
163:
130:
1415:
1295:
859:
854:
820:
737:
289:
209:
190:
181:(ISA). The UltraSPARC IV was originally to be succeeded by the UltraSPARC V
1300:
920:
732:
727:
643:
586:
247:
1252:
1176:
1033:
930:
774:
759:
470:
Krewell, Kevin (10 November 2003). "UltraSPARC IV Mirrors
Predecessor".
452:"Analyst Firm Shows Sun Gaining Market Share in Worldwide Server Market"
1365:
1124:
1088:
1053:
1011:
815:
810:
805:
779:
673:
668:
262:
194:
140:
74:
23:
1257:
1140:
1083:
910:
712:
653:
648:
312:
277:
1345:
1330:
1285:
1242:
1181:
945:
915:
874:
869:
864:
722:
693:
688:
683:
678:
500:
285:
333:"Sun plans to use UltraSparc IV chip to provide a superior server"
1262:
1078:
1058:
1023:
800:
769:
663:
658:
576:
265:
and measures 22.1 mm by 16.1 mm (356 mm). It was
1360:
1212:
1073:
1016:
999:
984:
900:
795:
581:
571:
566:
561:
175:
94:
1350:
1028:
905:
884:
300:
479:
Krewell, Kevin (18 January 2005). "Best
Servers of 2004".
1119:
185:, which was canceled after the announcement of the
383:"Sun breaks omerta for UltraSPARC IV+ speed bump"
1413:
355:"UltraSPARC IV Processor Architecture Overview"
430:"Sun revamps Unix servers with UltraSparc IV+"
246:implements additional hardware to handle more
516:
1233:Common Development and Distribution License
968:
523:
509:
288:V490, V890, E2900, E4900, E6900, E20K and
1422:Computer-related introductions in 2005
1414:
261:The UltraSPARC IV contains 66 million
504:
530:
13:
14:
1453:
489:
364:. Sun Microsystems. February 2004
22:
273:in their 0.13 μm process.
84:Architecture and classification
444:
422:
409:a copy of old www.sun.com site
397:
375:
362:a copy of old www.sun.com site
347:
335:. TechSpot. September 13, 2004
325:
1:
1268:Open Source University Meetup
1177:Sun Microsystems Laboratories
385:. The Register. April 4, 2007
318:
229:coarse-grained multithreading
79:1.05 GHz to 2.1 GHz
179:instruction set architecture
7:
1437:Superscalar microprocessors
1387:The Network is the Computer
432:. C-Net. September 20, 2005
306:
10:
1458:
587:SPARCstation/server/center
454:. WebWire. August 23, 2006
1400:
1379:
1313:
1276:
1228:
1221:
1200:
1169:
1133:
1097:
1069:Sun Secure Global Desktop
977:
966:
893:
788:
554:
547:
538:
136:
126:
121:
105:
100:
88:
83:
69:
64:
48:
38:
33:
21:
1392:Write once, run anywhere
936:System Service Processor
951:Ultra Port Architecture
303:server market in 2006.
101:Physical specifications
1442:64-bit microprocessors
1238:Java Community Process
1105:StorageTek 5800 System
956:Visual Instruction Set
1427:SPARC microprocessors
1192:Project Looking Glass
496:Computerworld article
482:Microprocessor Report
473:Microprocessor Report
1151:Visualization System
1146:Constellation System
225:block multithreading
170:and manufactured by
90:Instruction set
1432:Sun microprocessors
1039:Java Desktop System
49:Common manufacturer
34:General information
18:
926:Modular Datacenter
541:Acquired by Oracle
411:. Sun Microsystems
16:
1409:
1408:
1356:Procom Technology
1336:Lighthouse Design
1309:
1308:
1291:Andy Bechtolsheim
1110:StorageTek SL8500
964:
963:
841:UltraSPARC III Cu
718:Blade workstation
271:Texas Instruments
172:Texas Instruments
146:
145:
56:Texas Instruments
1449:
1341:Montalvo Systems
1321:Afara Websystems
1226:
1225:
972:
765:Java Workstation
755:SPARC Enterprise
552:
551:
532:Sun Microsystems
525:
518:
511:
502:
501:
463:
462:
460:
459:
448:
442:
441:
439:
437:
426:
420:
419:
417:
416:
405:"UltraSPARC IV+"
401:
395:
394:
392:
390:
379:
373:
372:
370:
369:
359:
351:
345:
344:
342:
340:
329:
227:- also known as
168:Sun Microsystems
43:Sun Microsystems
26:
19:
15:
1457:
1456:
1452:
1451:
1450:
1448:
1447:
1446:
1412:
1411:
1410:
1405:
1396:
1375:
1326:Cobalt Networks
1305:
1272:
1217:
1196:
1165:
1129:
1093:
973:
960:
889:
844:UltraSPARC IIIi
784:
543:
534:
529:
492:
467:
466:
457:
455:
450:
449:
445:
435:
433:
428:
427:
423:
414:
412:
403:
402:
398:
388:
386:
381:
380:
376:
367:
365:
357:
353:
352:
348:
338:
336:
331:
330:
326:
321:
309:
254:cases to avoid
164:microprocessors
117:
60:
29:
12:
11:
5:
1455:
1445:
1444:
1439:
1434:
1429:
1424:
1407:
1406:
1401:
1398:
1397:
1395:
1394:
1389:
1383:
1381:
1377:
1376:
1374:
1373:
1368:
1363:
1358:
1353:
1348:
1343:
1338:
1333:
1328:
1323:
1317:
1315:
1311:
1310:
1307:
1306:
1304:
1303:
1298:
1293:
1288:
1282:
1280:
1274:
1273:
1271:
1270:
1265:
1260:
1255:
1250:
1248:OpenOffice.org
1245:
1240:
1235:
1229:
1223:
1219:
1218:
1216:
1215:
1210:
1204:
1202:
1198:
1197:
1195:
1194:
1189:
1184:
1179:
1173:
1171:
1167:
1166:
1164:
1163:
1158:
1153:
1148:
1143:
1137:
1135:
1131:
1130:
1128:
1127:
1122:
1117:
1112:
1107:
1101:
1099:
1095:
1094:
1092:
1091:
1086:
1081:
1076:
1071:
1066:
1061:
1056:
1051:
1046:
1041:
1036:
1031:
1026:
1021:
1020:
1019:
1009:
1004:
1003:
1002:
992:
987:
981:
979:
975:
974:
967:
965:
962:
961:
959:
958:
953:
948:
943:
941:SPARC T series
938:
933:
928:
923:
918:
913:
908:
903:
897:
895:
891:
890:
888:
887:
882:
877:
872:
867:
862:
857:
852:
847:
846:
845:
842:
837:UltraSPARC III
834:
833:
832:
829:
828:UltraSPARC IIi
826:
825:UltraSPARC IIe
818:
813:
808:
803:
798:
792:
790:
786:
785:
783:
782:
777:
772:
767:
762:
757:
752:
751:
750:
745:
740:
735:
730:
720:
715:
710:
709:
708:
698:
697:
696:
691:
686:
681:
676:
671:
666:
661:
651:
646:
641:
640:
639:
634:
629:
624:
619:
614:
609:
604:
599:
594:
584:
579:
574:
569:
564:
558:
556:
549:
545:
544:
539:
536:
535:
528:
527:
520:
513:
505:
499:
498:
491:
490:External links
488:
487:
486:
477:
465:
464:
443:
421:
396:
374:
346:
323:
322:
320:
317:
316:
315:
308:
305:
241:floating-point
236:UltraSPARC III
157:UltraSPARC IV+
155:and follow-up
144:
143:
138:
134:
133:
131:UltraSPARC III
128:
124:
123:
119:
118:
116:
115:
111:
109:
103:
102:
98:
97:
92:
86:
85:
81:
80:
77:
67:
66:
62:
61:
59:
58:
52:
50:
46:
45:
40:
36:
35:
31:
30:
27:
9:
6:
4:
3:
2:
1454:
1443:
1440:
1438:
1435:
1433:
1430:
1428:
1425:
1423:
1420:
1419:
1417:
1404:
1399:
1393:
1390:
1388:
1385:
1384:
1382:
1378:
1372:
1369:
1367:
1364:
1362:
1359:
1357:
1354:
1352:
1349:
1347:
1344:
1342:
1339:
1337:
1334:
1332:
1329:
1327:
1324:
1322:
1319:
1318:
1316:
1312:
1302:
1299:
1297:
1296:Scott McNealy
1294:
1292:
1289:
1287:
1284:
1283:
1281:
1279:
1275:
1269:
1266:
1264:
1261:
1259:
1256:
1254:
1251:
1249:
1246:
1244:
1241:
1239:
1236:
1234:
1231:
1230:
1227:
1224:
1220:
1214:
1211:
1209:
1206:
1205:
1203:
1199:
1193:
1190:
1188:
1185:
1183:
1180:
1178:
1175:
1174:
1172:
1168:
1162:
1159:
1157:
1154:
1152:
1149:
1147:
1144:
1142:
1139:
1138:
1136:
1132:
1126:
1123:
1121:
1118:
1116:
1113:
1111:
1108:
1106:
1103:
1102:
1100:
1096:
1090:
1087:
1085:
1082:
1080:
1077:
1075:
1072:
1070:
1067:
1065:
1062:
1060:
1057:
1055:
1052:
1050:
1047:
1045:
1042:
1040:
1037:
1035:
1032:
1030:
1027:
1025:
1022:
1018:
1015:
1014:
1013:
1010:
1008:
1005:
1001:
998:
997:
996:
993:
991:
988:
986:
983:
982:
980:
976:
971:
957:
954:
952:
949:
947:
944:
942:
939:
937:
934:
932:
929:
927:
924:
922:
919:
917:
914:
912:
909:
907:
904:
902:
899:
898:
896:
892:
886:
883:
881:
878:
876:
873:
871:
868:
866:
863:
861:
860:UltraSPARC T2
858:
856:
855:UltraSPARC T1
853:
851:
850:UltraSPARC IV
848:
843:
840:
839:
838:
835:
830:
827:
824:
823:
822:
821:UltraSPARC II
819:
817:
814:
812:
809:
807:
804:
802:
799:
797:
794:
793:
791:
787:
781:
778:
776:
773:
771:
768:
766:
763:
761:
758:
756:
753:
749:
746:
744:
741:
739:
736:
734:
731:
729:
726:
725:
724:
721:
719:
716:
714:
711:
707:
704:
703:
702:
699:
695:
692:
690:
687:
685:
682:
680:
677:
675:
672:
670:
667:
665:
662:
660:
657:
656:
655:
652:
650:
647:
645:
642:
638:
635:
633:
630:
628:
625:
623:
620:
618:
615:
613:
610:
608:
605:
603:
600:
598:
595:
593:
590:
589:
588:
585:
583:
580:
578:
575:
573:
570:
568:
565:
563:
560:
559:
557:
553:
550:
546:
542:
537:
533:
526:
521:
519:
514:
512:
507:
506:
503:
497:
494:
493:
484:
483:
478:
475:
474:
469:
468:
453:
447:
431:
425:
410:
406:
400:
384:
378:
363:
356:
350:
334:
328:
324:
314:
311:
310:
304:
302:
298:
293:
291:
287:
282:
279:
274:
272:
268:
264:
259:
257:
253:
249:
245:
242:
237:
232:
230:
226:
222:
218:
214:
211:
210:UltraSPARC T1
207:
203:
198:
196:
192:
191:UltraSPARC T1
188:
184:
180:
177:
173:
169:
165:
161:
158:
154:
151:
150:UltraSPARC IV
142:
139:
135:
132:
129:
125:
120:
113:
112:
110:
108:
104:
99:
96:
93:
91:
87:
82:
78:
76:
73:
68:
63:
57:
54:
53:
51:
47:
44:
41:
37:
32:
28:UltraSPARC IV
25:
20:
17:UltraSPARC IV
1314:Acquisitions
1301:Vinod Khosla
1115:Open Storage
849:
713:Blade server
644:SPARCclassic
480:
471:
456:. Retrieved
446:
434:. Retrieved
424:
413:. Retrieved
408:
399:
387:. Retrieved
377:
366:. Retrieved
361:
349:
337:. Retrieved
327:
294:
283:
275:
260:
248:not a number
233:
228:
223:implemented
220:
216:
212:
205:
201:
199:
186:
182:
166:designed by
159:
156:
152:
149:
147:
1253:OpenSolaris
1156:Grid Engine
1134:Performance
1064:Java System
1034:OpenWindows
775:Cobalt Qube
760:JavaStation
263:transistors
127:Predecessor
65:Performance
39:Designed by
1416:Categories
1371:Tarantella
1366:StorageTek
1089:VirtualBox
1054:StarOffice
816:UltraSPARC
811:SuperSPARC
806:microSPARC
789:Processors
780:Cobalt RaQ
701:Enterprise
458:2012-07-26
415:2012-07-26
368:2012-07-26
319:References
267:fabricated
256:exceptions
250:(NaN) and
217:Millennium
202:Millennium
195:SPARC64 VI
183:Millennium
141:SPARC64 VI
75:clock rate
1258:OpenSPARC
1222:Community
1201:Education
1084:GlassFish
911:Fireplane
313:Fireplane
278:nanometer
252:underflow
137:Successor
1403:Category
1346:MySQL AB
1331:Gridware
1286:Bill Joy
1243:NetBeans
1187:Fortress
1182:picoJava
1170:Research
978:Software
916:LOM port
875:SPARC T5
870:SPARC T4
865:SPARC T3
548:Hardware
436:July 12,
389:July 12,
339:July 12,
307:See also
286:Sun Fire
176:SPARC V9
95:SPARC V9
1380:Slogans
1263:OpenJDK
1098:Storage
1059:iPlanet
1024:SunView
990:Solaris
931:Neptune
801:MB86900
577:Sun386i
555:Systems
221:Niagara
213:Niagara
187:Niagara
160:Panther
122:History
1361:SavaJe
1278:People
1161:Lustre
1044:Studio
831:Gemini
206:Gemini
189:, now
153:Jaguar
1213:BlueJ
1141:Cloud
1074:MySQL
985:SunOS
901:Sun4d
894:Other
796:SPARC
748:X4500
743:T2000
706:10000
654:Ultra
649:Netra
582:Sun-4
572:Sun-3
567:Sun-2
562:Sun-1
358:(PDF)
244:adder
107:Cores
70:Max.
1351:Pixo
1208:SCPs
1049:Java
1029:NeWS
1017:ZFS+
1000:NIS+
946:SPOT
921:MBus
906:SBus
885:MAJC
880:Rock
738:E25K
723:Fire
438:2012
391:2012
341:2012
301:UNIX
297:RISC
290:E25K
219:and
208:and
162:are
148:The
1125:ZFS
1120:QFS
1079:xVM
1012:ZFS
1007:NFS
995:NIS
770:Ray
733:15K
728:12K
627:IPX
622:IPC
269:by
72:CPU
1418::
694:80
689:60
684:30
679:24
674:10
637:ZX
632:LX
617:20
612:10
407:.
360:.
204:,
197:.
669:5
664:2
659:1
607:5
602:4
597:2
592:1
524:e
517:t
510:v
485:.
476:.
461:.
440:.
418:.
393:.
371:.
343:.
299:/
114:2
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
