Intel won't release spectre patch for more than 200 processors.
newsroom.intel.com
Some of them:
Intel® Core™ Processor Extreme Edition i7-975
Intel® Core™ Processor i7-920, 930, 950, 960
Intel® Core™ Processor Extreme Edition i7-965
Intel® Core™ Processor i7-920, 940
Intel® Core™ Extreme Processor i7-920XM, 940XM
Intel® Core™ Processor i7-720QM, 740QM, 820QM, 840QM
Intel® Core™ i7-970, 980
Intel® Core™ Processor Extreme Edition i7-980X, 990X
Intel® Core™ 2 Duo Processor E7200, E7300, E8190,
E8200, E8300, E8400, E8500
Intel® Core™2 Extreme Processor X9000, X9100
Intel® Core™2 Quad Processor Q9000, Q9100
Intel® Core™2 Duo Processor T6400, T6500, T6670, T8100,
T8300, T9300, T9400, T9500, T9550, T9600, T9800,
T9900, SU9300, SU9400, SU9600, SP9300, SP9400,
SP9600, SL9380, SL9400, SL9600, SL9300, P7350, P7370,
P7450, P7550, P7570, P8400, P8600, P8700, P8800,
P9500, P9600, P9700
Intel® Core™2 Solo Processor SU3500, ULV SU3500, ULV
SU3300
Intel® Pentium® Processor T4200, T4300, T4400, T4500
Intel® Celeron® Processor 900, 925, SU2300, T3100,
T3300, T3500, ULV 763
Intel® Celeron® M Processor ULV 722, ULV 723, ULV 743
Intel® Core™ 2 Duo Processor E7400, E7500, E8400,
E8500, E8600
Intel® Pentium® Processor E5200, E5300, E5400, E5500,
E5700, E5800, E6300, E6500, E6500K, E6600, E6700,
E6800
Intel® Celeron® Processor E3200, E3300, E3400, E3500
Intel® Core™2 Extreme Processor QX9650, QX9770,
QX9775
Intel® Core™2 Quad Processor Q8200, Q8200S, Q8400,
Q8400S, Q9300, Q9400, Q9400S, Q9450, Q9500, Q9505,
Q9505S, Q9550, Q9550S, Q9650
And a lot of Xeons.