| predecessor      = Athlon 64 X2

| predecessor link = amd/athlon 64 x2

| successor        = Phenom II X3

| successor link   = amd/phenom ii x3

'''Phenom X3''' was a family of {{arch|64}} [[x86]] [[tri-core]] budget microprocessors designed by [[AMD]] and introduced in [[2008]]. Phenom X3, which succeeded {{amd|Athlon 64 X2}}, offered [[tri-core|three cores]] and incorporated all of AMD's advance technologies up to and including {{x86|SSE4a}}, as well as Virtualization, and {{amd|HyperTransport}} support.

Introduced in 2008, all Phenom X3 processors were based on the {{amd|K10|l=arch}} microarchitecture.

! Model Number !! Arch !! Frequency !! Cores !! Threads || [[technology node|Process ]] || L2$ || L3$ || TDP || Introduced

| {{\|8250e|Phenom X3 8250e}}  || K10 || 1.9 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 65 W || 2008-09

| {{\|8400|Phenom X3 8400}}  || K10 || 2.1 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-03

| {{\|8450|Phenom X3 8450}}  || K10 || 2.1 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-04

| {{\|8450e|Phenom X3 8450e}}  || K10 || 2.1 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 65 W || 2008-09

| {{\|8550|Phenom X3 8550}} || K10 || 2.2 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-04

| {{\|8600|Phenom X3 8600}} || K10 || 2.3 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-03

| {{\|8600B|Phenom X3 8600B}} || K10 || 2.3 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-04

| {{\|8650|Phenom X3 8650}}  || K10 || 2.3 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-04

| {{\|8750|Phenom X3 8750}}  || K10 || 2.4 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-04

| {{\|8750B|Phenom X3 8750B}}  || K10 || 2.4 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-08

| {{\|8750 Black Edition|Phenom X3 8750 Black Edition}}  || K10 || 2.4 GHz || 3 || 3 || 65 nm || 3x512 KB || 2 MB || 95 W || 2008-09