▁ 4 8 6 D LC 2 , ▁ 4 8 6 D LC 3 ▁( aka ▁Blue ▁Light ning ) ▁are ▁often ▁confused ▁with ▁the ▁Cy rix ▁ch ips , ▁but ▁are ▁not ▁related ▁and ▁are ▁instead ▁based ▁on ▁Intel ' s ▁i 4 8 6 ▁design . ▁ ▁Int rodu ced ▁in ▁June ▁ 1 9 9 2 , ▁like ▁the ▁later ▁and ▁more ▁famous ▁Cy rix ▁C x 5 x 8 6 ▁it ▁was ▁a ▁hy brid ▁CPU , ▁incorpor ating ▁features ▁of ▁a ▁new ▁CPU ▁( in ▁this ▁case ▁the ▁Intel ▁ 8 0 4 8 6 ) ▁while ▁plug ging ▁into ▁its ▁prede cess or ' s ▁( 3 8 6 D X ) ▁socket . ▁It ▁ran ▁at ▁spe eds ▁of ▁ 2 5 , ▁ 3 3 , ▁and ▁ 4 0   M Hz . ▁ ▁The ▁ 4 8 6 D LC ▁can ▁be ▁described ▁as ▁a ▁ 3 8 6 D X ▁with ▁the ▁ 4 8 6 ▁instruction ▁set ▁and ▁ 1   KB ▁of ▁on - board ▁L 1 ▁cache ▁added . ▁Because ▁it ▁used ▁the ▁ 3 8 6 D X ▁bus ▁( un like ▁its ▁ 1 6 - bit ▁cousin , ▁the ▁ 4 8 6 S LC ) ▁it ▁was ▁a ▁fully ▁ 3 2 - bit ▁chip . ▁Like ▁the ▁ 3 8 6 ▁and ▁ 4 8 6 S X , ▁it ▁had ▁no ▁on - board ▁math ▁cop ro cess or , ▁but ▁unlike