I found the following info within a the Bioshock Infinite "BaseCompat" config file, \
Here is from the bottom of the list:
;0 indicates unsupported. -1 indicates untested. Most laptops and Quadros have not been tested
; 1=VeryLow, 2=Low, 3=Medium, 4=High, 5=VeryHigh, 6=Ultra (DX11 only)
0x402=1, Desktop Haswell GT1 ; VeryLow ; SM5.0
0x406=1, Mobile Haswell GT1 ; VeryLow ; SM5.0
0x40A=1, Server Haswell GT1 ; VeryLow ; SM5.0
0x412=1, Desktop Haswell GT2 ; VeryLow ; SM5.0
0x416=1, Mobile Haswell GT2 ; VeryLow ; SM5.0
0x41B=1, Workstation Haswell GT2 ; VeryLow ; SM5.0
0x41A=1, Server Haswell GT2 ; VeryLow ; SM5.0
0x41E=1, Desktop Haswell GT1.5 ; VeryLow ; SM5.0
0xA06=1, Mobile Haswell ULT GT1 ; VeryLow ; SM5.0
0xA0E=1, Mobile Haswell ULX GT1 ; VeryLow ; SM5.0
0xA16=1, Mobile Haswell ULT GT2 ; VeryLow ; SM5.0
0xA1E=1, Mobile Haswell ULX GT2 ; VeryLow ; SM5.0
0xA26=1, Mobile Haswell ULT GT3 ; VeryLow ; SM5.0
0xA2E=1, Mobile Haswell ULT GT3@25 ; VeryLow ; SM5.0
0xD12=1, Desktop Haswell GT2F ; VeryLow ; SM5.0
0xD16=1, Mobile Haswell GT2F ; VeryLow ; SM5.0
0xD22=1, Desktop Crystalwell GT3 ; VeryLow ; SM5.0
0xD26=1, Mobile Crystalwell GT3 ; VeryLow ; SM5.0
0xD2A=1, Server Crystalwell GT3 ; VeryLow ; SM5.0
This Seems to Indicate that the improvement will not be as drastic as many have expected, as it will run at "very low"
This also shows the igpu, will have shader model 5.0.
Here is from the bottom of the list:
;0 indicates unsupported. -1 indicates untested. Most laptops and Quadros have not been tested
; 1=VeryLow, 2=Low, 3=Medium, 4=High, 5=VeryHigh, 6=Ultra (DX11 only)
0x402=1, Desktop Haswell GT1 ; VeryLow ; SM5.0
0x406=1, Mobile Haswell GT1 ; VeryLow ; SM5.0
0x40A=1, Server Haswell GT1 ; VeryLow ; SM5.0
0x412=1, Desktop Haswell GT2 ; VeryLow ; SM5.0
0x416=1, Mobile Haswell GT2 ; VeryLow ; SM5.0
0x41B=1, Workstation Haswell GT2 ; VeryLow ; SM5.0
0x41A=1, Server Haswell GT2 ; VeryLow ; SM5.0
0x41E=1, Desktop Haswell GT1.5 ; VeryLow ; SM5.0
0xA06=1, Mobile Haswell ULT GT1 ; VeryLow ; SM5.0
0xA0E=1, Mobile Haswell ULX GT1 ; VeryLow ; SM5.0
0xA16=1, Mobile Haswell ULT GT2 ; VeryLow ; SM5.0
0xA1E=1, Mobile Haswell ULX GT2 ; VeryLow ; SM5.0
0xA26=1, Mobile Haswell ULT GT3 ; VeryLow ; SM5.0
0xA2E=1, Mobile Haswell ULT GT3@25 ; VeryLow ; SM5.0
0xD12=1, Desktop Haswell GT2F ; VeryLow ; SM5.0
0xD16=1, Mobile Haswell GT2F ; VeryLow ; SM5.0
0xD22=1, Desktop Crystalwell GT3 ; VeryLow ; SM5.0
0xD26=1, Mobile Crystalwell GT3 ; VeryLow ; SM5.0
0xD2A=1, Server Crystalwell GT3 ; VeryLow ; SM5.0
This Seems to Indicate that the improvement will not be as drastic as many have expected, as it will run at "very low"
This also shows the igpu, will have shader model 5.0.