CVar processAffinityMask

Manually adjusting this CVar is no longer needed as of 3.3.2 unless you're trying to run the game on specific cores. It is now uncapped so it will run on whatever core your OS deems as fit. If however, you want to specify which cores wow runs on, continue reading.
This cvar determines which cores of your processor wow will load & run on.
Changing this setting requires a restart of wow.
To make this change, you need to open your Config.wtf file, and then make the changes.
==Customizing your settings for multi-core processors:==
To customize which cores WoW uses place SET processAffinityMask "x" in your Config.wtf where x is the corresponding value in the following table.
 processAffinityMask Values
Value	Core 1 	Core 2 	Core 3 	Core 4 	Core 5 	Core 6 	Core 7 	Core 8
0 	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on	Allows the Operating System to choose cores to run on
1 	Yes 	No 	No 	No 	No 	No 	No 	No
2 	No 	Yes 	No 	No 	No 	No 	No 	No
3 	Yes 	Yes 	No 	No 	No 	No 	No 	No
4 	No 	No 	Yes 	No 	No 	No 	No 	No
5 	Yes 	No 	Yes 	No 	No 	No 	No 	No
6 	No 	Yes 	Yes 	No 	No 	No 	No 	No
7 	Yes 	Yes 	Yes 	No 	No 	No 	No 	No
8 	No 	No 	No 	Yes 	No 	No 	No 	No
9 	Yes 	No 	No 	Yes 	No 	No 	No 	No
10 	No 	Yes 	No 	Yes 	No 	No 	No 	No
11 	Yes 	Yes 	No 	Yes 	No 	No 	No 	No
12 	No 	No 	Yes 	Yes 	No 	No 	No 	No
13 	Yes 	No 	Yes 	Yes 	No 	No 	No 	No
14 	No 	Yes 	Yes 	Yes 	No 	No 	No 	No
15 	Yes 	Yes 	Yes 	Yes 	No 	No 	No 	No
16 	No 	No 	No 	No 	Yes 	No 	No 	No
17 	Yes 	No 	No 	No 	Yes 	No 	No 	No
18 	No 	Yes 	No 	No 	Yes 	No 	No 	No
19 	Yes 	Yes 	No 	No 	Yes 	No 	No 	No
20 	No 	No 	Yes 	No 	Yes 	No 	No 	No
21 	Yes 	No 	Yes 	No 	Yes 	No 	No 	No
22 	No 	Yes 	Yes 	No 	Yes 	No 	No 	No
23 	Yes 	Yes 	Yes 	No 	Yes 	No 	No 	No
24 	No 	No 	No 	Yes 	Yes 	No 	No 	No
25 	Yes 	No 	No 	Yes 	Yes 	No 	No 	No
26 	No 	Yes 	No 	Yes 	Yes 	No 	No 	No
27 	Yes 	Yes 	No 	Yes 	Yes 	No 	No 	No
28 	No 	No 	Yes 	Yes 	Yes 	No 	No 	No
29 	Yes 	No 	Yes 	Yes 	Yes 	No 	No 	No
30 	No 	Yes 	Yes 	Yes 	Yes 	No 	No 	No
31 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	No 	No
32 	No 	No 	No 	No 	No 	Yes 	No 	No
33 	Yes 	No 	No 	No 	No 	Yes 	No 	No
34 	No 	Yes 	No 	No 	No 	Yes 	No 	No
35 	Yes 	Yes 	No 	No 	No 	Yes 	No 	No
36 	No 	No 	Yes 	No 	No 	Yes 	No 	No
37 	Yes 	No 	Yes 	No 	No 	Yes 	No 	No
38 	No 	Yes 	Yes 	No 	No 	Yes 	No 	No
39 	Yes 	Yes 	Yes 	No 	No 	Yes 	No 	No
40 	No 	No 	No 	Yes 	No 	Yes 	No 	No
41 	Yes 	No 	No 	Yes 	No 	Yes 	No 	No
42 	No 	Yes 	No 	Yes 	No 	Yes 	No 	No
43 	Yes 	Yes 	No 	Yes 	No 	Yes 	No 	No
44 	No 	No 	Yes 	Yes 	No 	Yes 	No 	No
45 	Yes 	No 	Yes 	Yes 	No 	Yes 	No 	No
46 	No 	Yes 	Yes 	Yes 	No 	Yes 	No 	No
47 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	No 	No
48 	No 	No 	No 	No 	Yes 	Yes 	No 	No
49 	Yes 	No 	No 	No 	Yes 	Yes 	No 	No
50 	No 	Yes 	No 	No 	Yes 	Yes 	No 	No
51 	Yes 	Yes 	No 	No 	Yes 	Yes 	No 	No
52 	No 	No 	Yes 	No 	Yes 	Yes 	No 	No
53 	Yes 	No 	Yes 	No 	Yes 	Yes 	No 	No
54 	No 	Yes 	Yes 	No 	Yes 	Yes 	No 	No
55 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	No 	No
56 	No 	No 	No 	Yes 	Yes 	Yes 	No 	No
57 	Yes 	No 	No 	Yes 	Yes 	Yes 	No 	No
58 	No 	Yes 	No 	Yes 	Yes 	Yes 	No 	No
59 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	No 	No
60 	No 	No 	Yes 	Yes 	Yes 	Yes 	No 	No
61 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	No 	No
62 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	No
63 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	No
64 	No 	No 	No 	No 	No 	No 	Yes 	No
65 	Yes 	No 	No 	No 	No 	No 	Yes 	No
66 	No 	Yes 	No 	No 	No 	No 	Yes 	No
67 	Yes 	Yes 	No 	No 	No 	No 	Yes 	No
68 	No 	No 	Yes 	No 	No 	No 	Yes 	No
69 	Yes 	No 	Yes 	No 	No 	No 	Yes 	No
70 	No 	Yes 	Yes 	No 	No 	No 	Yes 	No
71 	Yes 	Yes 	Yes 	No 	No 	No 	Yes 	No
72 	No 	No 	No 	Yes 	No 	No 	Yes 	No
73 	Yes 	No 	No 	Yes 	No 	No 	Yes 	No
74 	No 	Yes 	No 	Yes 	No 	No 	Yes 	No
75 	Yes 	Yes 	No 	Yes 	No 	No 	Yes 	No
76 	No 	No 	Yes 	Yes 	No 	No 	Yes 	No
77 	Yes 	No 	Yes 	Yes 	No 	No 	Yes 	No
78 	No 	Yes 	Yes 	Yes 	No 	No 	Yes 	No
79 	Yes 	Yes 	Yes 	Yes 	No 	No 	Yes 	No
80 	No 	No 	No 	No 	Yes 	No 	Yes 	No
81 	Yes 	No 	No 	No 	Yes 	No 	Yes 	No
82 	No 	Yes 	No 	No 	Yes 	No 	Yes 	No
83 	Yes 	Yes 	No 	No 	Yes 	No 	Yes 	No
84 	No 	No 	Yes 	No 	Yes 	No 	Yes 	No
85 	Yes 	No 	Yes 	No 	Yes 	No 	Yes 	No
86 	No 	Yes 	Yes 	No 	Yes 	No 	Yes 	No
87 	Yes 	Yes 	Yes 	No 	Yes 	No 	Yes 	No
88 	No 	No 	No 	Yes 	Yes 	No 	Yes 	No
89 	Yes 	No 	No 	Yes 	Yes 	No 	Yes 	No
90 	No 	Yes 	No 	Yes 	Yes 	No 	Yes 	No
91 	Yes 	Yes 	No 	Yes 	Yes 	No 	Yes 	No
92 	No 	No 	Yes 	Yes 	Yes 	No 	Yes 	No
93 	Yes 	No 	Yes 	Yes 	Yes 	No 	Yes 	No
94 	No 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	No
95 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	No
96 	No 	No 	No 	No 	No 	Yes 	Yes 	No
97 	Yes 	No 	No 	No 	No 	Yes 	Yes 	No
98 	No 	Yes 	No 	No 	No 	Yes 	Yes 	No
99 	Yes 	Yes 	No 	No 	No 	Yes 	Yes 	No
100 	No 	No 	Yes 	No 	No 	Yes 	Yes 	No
101 	Yes 	No 	Yes 	No 	No 	Yes 	Yes 	No
102 	No 	Yes 	Yes 	No 	No 	Yes 	Yes 	No
103 	Yes 	Yes 	Yes 	No 	No 	Yes 	Yes 	No
104 	No 	No 	No 	Yes 	No 	Yes 	Yes 	No
105 	Yes 	No 	No 	Yes 	No 	Yes 	Yes 	No
106 	No 	Yes 	No 	Yes 	No 	Yes 	Yes 	No
107 	Yes 	Yes 	No 	Yes 	No 	Yes 	Yes 	No
108 	No 	No 	Yes 	Yes 	No 	Yes 	Yes 	No
109 	Yes 	No 	Yes 	Yes 	No 	Yes 	Yes 	No
110 	No 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	No
111 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	No
112 	No 	No 	No 	No 	Yes 	Yes 	Yes 	No
113 	Yes 	No 	No 	No 	Yes 	Yes 	Yes 	No
114 	No 	Yes 	No 	No 	Yes 	Yes 	Yes 	No
115 	Yes 	Yes 	No 	No 	Yes 	Yes 	Yes 	No
116 	No 	No 	Yes 	No 	Yes 	Yes 	Yes 	No
117 	Yes 	No 	Yes 	No 	Yes 	Yes 	Yes 	No
118 	No 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	No
119 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	No
120 	No 	No 	No 	Yes 	Yes 	Yes 	Yes 	No
121 	Yes 	No 	No 	Yes 	Yes 	Yes 	Yes 	No
122 	No 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	No
123 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	No
124 	No 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	No
125 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	No
126 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	No
127 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	No
128 	No 	No 	No 	No 	No 	No 	No 	Yes
129 	Yes 	No 	No 	No 	No 	No 	No 	Yes
130 	No 	Yes 	No 	No 	No 	No 	No 	Yes
131 	Yes 	Yes 	No 	No 	No 	No 	No 	Yes
132 	No 	No 	Yes 	No 	No 	No 	No 	Yes
133 	Yes 	No 	Yes 	No 	No 	No 	No 	Yes
134 	No 	Yes 	Yes 	No 	No 	No 	No 	Yes
135 	Yes 	Yes 	Yes 	No 	No 	No 	No 	Yes
136 	No 	No 	No 	Yes 	No 	No 	No 	Yes
137 	Yes 	No 	No 	Yes 	No 	No 	No 	Yes
138 	No 	Yes 	No 	Yes 	No 	No 	No 	Yes
139 	Yes 	Yes 	No 	Yes 	No 	No 	No 	Yes
140 	No 	No 	Yes 	Yes 	No 	No 	No 	Yes
141 	Yes 	No 	Yes 	Yes 	No 	No 	No 	Yes
142 	No 	Yes 	Yes 	Yes 	No 	No 	No 	Yes
143 	Yes 	Yes 	Yes 	Yes 	No 	No 	No 	Yes
144 	No 	No 	No 	No 	Yes 	No 	No 	Yes
145 	Yes 	No 	No 	No 	Yes 	No 	No 	Yes
146 	No 	Yes 	No 	No 	Yes 	No 	No 	Yes
147 	Yes 	Yes 	No 	No 	Yes 	No 	No 	Yes
148 	No 	No 	Yes 	No 	Yes 	No 	No 	Yes
149 	Yes 	No 	Yes 	No 	Yes 	No 	No 	Yes
150 	No 	Yes 	Yes 	No 	Yes 	No 	No 	Yes
151 	Yes 	Yes 	Yes 	No 	Yes 	No 	No 	Yes
152 	No 	No 	No 	Yes 	Yes 	No 	No 	Yes
153 	Yes 	No 	No 	Yes 	Yes 	No 	No 	Yes
154 	No 	Yes 	No 	Yes 	Yes 	No 	No 	Yes
155 	Yes 	Yes 	No 	Yes 	Yes 	No 	No 	Yes
156 	No 	No 	Yes 	Yes 	Yes 	No 	No 	Yes
157 	Yes 	No 	Yes 	Yes 	Yes 	No 	No 	Yes
158 	No 	Yes 	Yes 	Yes 	Yes 	No 	No 	Yes
159 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	No 	Yes
160 	No 	No 	No 	No 	No 	Yes 	No 	Yes
161 	Yes 	No 	No 	No 	No 	Yes 	No 	Yes
162 	No 	Yes 	No 	No 	No 	Yes 	No 	Yes
163 	Yes 	Yes 	No 	No 	No 	Yes 	No 	Yes
164 	No 	No 	Yes 	No 	No 	Yes 	No 	Yes
165 	Yes 	No 	Yes 	No 	No 	Yes 	No 	Yes
166 	No 	Yes 	Yes 	No 	No 	Yes 	No 	Yes
167 	Yes 	Yes 	Yes 	No 	No 	Yes 	No 	Yes
168 	No 	No 	No 	Yes 	No 	Yes 	No 	Yes
169 	Yes 	No 	No 	Yes 	No 	Yes 	No 	Yes
170 	No 	Yes 	No 	Yes 	No 	Yes 	No 	Yes
171 	Yes 	Yes 	No 	Yes 	No 	Yes 	No 	Yes
172 	No 	No 	Yes 	Yes 	No 	Yes 	No 	Yes
173 	Yes 	No 	Yes 	Yes 	No 	Yes 	No 	Yes
174 	No 	Yes 	Yes 	Yes 	No 	Yes 	No 	Yes
175 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	No 	Yes
176 	No 	No 	No 	No 	Yes 	Yes 	No 	Yes
177 	Yes 	No 	No 	No 	Yes 	Yes 	No 	Yes
178 	No 	Yes 	No 	No 	Yes 	Yes 	No 	Yes
179 	Yes 	Yes 	No 	No 	Yes 	Yes 	No 	Yes
180 	No 	No 	Yes 	No 	Yes 	Yes 	No 	Yes
181 	Yes 	No 	Yes 	No 	Yes 	Yes 	No 	Yes
182 	No 	Yes 	Yes 	No 	Yes 	Yes 	No 	Yes
183 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	No 	Yes
184 	No 	No 	No 	Yes 	Yes 	Yes 	No 	Yes
185 	Yes 	No 	No 	Yes 	Yes 	Yes 	No 	Yes
186 	No 	Yes 	No 	Yes 	Yes 	Yes 	No 	Yes
187 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	No 	Yes
188 	No 	No 	Yes 	Yes 	Yes 	Yes 	No 	Yes
189 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	No 	Yes
190 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	Yes
191 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	Yes
192 	No 	No 	No 	No 	No 	No 	Yes 	Yes
193 	Yes 	No 	No 	No 	No 	No 	Yes 	Yes
194 	No 	Yes 	No 	No 	No 	No 	Yes 	Yes
195 	Yes 	Yes 	No 	No 	No 	No 	Yes 	Yes
196 	No 	No 	Yes 	No 	No 	No 	Yes 	Yes
197 	Yes 	No 	Yes 	No 	No 	No 	Yes 	Yes
198 	No 	Yes 	Yes 	No 	No 	No 	Yes 	Yes
199 	Yes 	Yes 	Yes 	No 	No 	No 	Yes 	Yes
200 	No 	No 	No 	Yes 	No 	No 	Yes 	Yes
201 	Yes 	No 	No 	Yes 	No 	No 	Yes 	Yes
202 	No 	Yes 	No 	Yes 	No 	No 	Yes 	Yes
203 	Yes 	Yes 	No 	Yes 	No 	No 	Yes 	Yes
204 	No 	No 	Yes 	Yes 	No 	No 	Yes 	Yes
205 	Yes 	No 	Yes 	Yes 	No 	No 	Yes 	Yes
206 	No 	Yes 	Yes 	Yes 	No 	No 	Yes 	Yes
207 	Yes 	Yes 	Yes 	Yes 	No 	No 	Yes 	Yes
208 	No 	No 	No 	No 	Yes 	No 	Yes 	Yes
209 	Yes 	No 	No 	No 	Yes 	No 	Yes 	Yes
210 	No 	Yes 	No 	No 	Yes 	No 	Yes 	Yes
211 	Yes 	Yes 	No 	No 	Yes 	No 	Yes 	Yes
212 	No 	No 	Yes 	No 	Yes 	No 	Yes 	Yes
213 	Yes 	No 	Yes 	No 	Yes 	No 	Yes 	Yes
214 	No 	Yes 	Yes 	No 	Yes 	No 	Yes 	Yes
215 	Yes 	Yes 	Yes 	No 	Yes 	No 	Yes 	Yes
216 	No 	No 	No 	Yes 	Yes 	No 	Yes 	Yes
217 	Yes 	No 	No 	Yes 	Yes 	No 	Yes 	Yes
218 	No 	Yes 	No 	Yes 	Yes 	No 	Yes 	Yes
219 	Yes 	Yes 	No 	Yes 	Yes 	No 	Yes 	Yes
220 	No 	No 	Yes 	Yes 	Yes 	No 	Yes 	Yes
221 	Yes 	No 	Yes 	Yes 	Yes 	No 	Yes 	Yes
222 	No 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	Yes
223 	Yes 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	Yes
224 	No 	No 	No 	No 	No 	Yes 	Yes 	Yes
225 	Yes 	No 	No 	No 	No 	Yes 	Yes 	Yes
226 	No 	Yes 	No 	No 	No 	Yes 	Yes 	Yes
227 	Yes 	Yes 	No 	No 	No 	Yes 	Yes 	Yes
228 	No 	No 	Yes 	No 	No 	Yes 	Yes 	Yes
229 	Yes 	No 	Yes 	No 	No 	Yes 	Yes 	Yes
230 	No 	Yes 	Yes 	No 	No 	Yes 	Yes 	Yes
231 	Yes 	Yes 	Yes 	No 	No 	Yes 	Yes 	Yes
232 	No 	No 	No 	Yes 	No 	Yes 	Yes 	Yes
233 	Yes 	No 	No 	Yes 	No 	Yes 	Yes 	Yes
234 	No 	Yes 	No 	Yes 	No 	Yes 	Yes 	Yes
235 	Yes 	Yes 	No 	Yes 	No 	Yes 	Yes 	Yes
236 	No 	No 	Yes 	Yes 	No 	Yes 	Yes 	Yes
237 	Yes 	No 	Yes 	Yes 	No 	Yes 	Yes 	Yes
238 	No 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	Yes
239 	Yes 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	Yes
240 	No 	No 	No 	No 	Yes 	Yes 	Yes 	Yes
241 	Yes 	No 	No 	No 	Yes 	Yes 	Yes 	Yes
242 	No 	Yes 	No 	No 	Yes 	Yes 	Yes 	Yes
243 	Yes 	Yes 	No 	No 	Yes 	Yes 	Yes 	Yes
244 	No 	No 	Yes 	No 	Yes 	Yes 	Yes 	Yes
245 	Yes 	No 	Yes 	No 	Yes 	Yes 	Yes 	Yes
246 	No 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	Yes
247 	Yes 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	Yes
248 	No 	No 	No 	Yes 	Yes 	Yes 	Yes 	Yes
249 	Yes 	No 	No 	Yes 	Yes 	Yes 	Yes 	Yes
250 	No 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	Yes
251 	Yes 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	Yes
252 	No 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes
253 	Yes 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes
254 	No 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes
255 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes 	Yes
Note: While the table only lists values up to 8 cores the cvar supports up to 32 cores with a max value of 4294967295.
==Setting Wow to run on all cores:==
Dual-cores:
 SET processAffinityMask "3" 
Tri-cores:
 SET processAffinityMask "7" 
Quad-cores & I5s:
 SET processAffinityMask "15" 
I7s:
 SET processAffinityMask "255" 
==Patch changes==
* 
* 
* 
processAffinityMask