EXHIBIT 99.1



GCCFC 2005-GG5
Class: A4B


                                                                                          
                  --------------------------------------------------------------------------------------------------------------
                  CDR                            0.00%                3.00%                 3.00%                4.00%
                  --------------------------------------------------------------------------------------------------------------
                  CPR                             0%                    5%                   5%                    5%
                  --------------------------------------------------------------------------------------------------------------
                  CPY                             0%                   100%                 100%                  100%
                  --------------------------------------------------------------------------------------------------------------
                  CDR Months Delay                 0                    12                   24                    12
                  --------------------------------------------------------------------------------------------------------------
                  Recovery Delay                   0                    12                   12                    12
                  --------------------------------------------------------------------------------------------------------------
                  Loss Severity                   0%                   35%                   35%                  35%
                  --------------------------------------------------------------------------------------------------------------
                  Ext Mths                         0                    0                     0                    0
                  --------------------------------------------------------------------------------------------------------------
                  Ext %                           0%                    0%                   0%                    0%
                  --------------------------------------------------------------------------------------------------------------


Balance
       75,000,000 WAL                            6.83                  6.44                 6.44                  6.37
                  Principal Window        Jul 2012 - Jan 2013        Apr 2012             Apr 2012        Nov 2011 - Apr 2012
                  Window in Months              80 - 86                 77                   77                 72 - 77


       50,000,000 WAL                            6.90                  6.44                 6.44                  6.44
                  Principal Window        Jul 2012 - Jan 2013        Apr 2012             Apr 2012              Apr 2012
                  Window in Months              80 - 86                 77                   77                    77


       25,000,000 WAL                            7.05                  6.44                 6.44                  6.44
                  Principal Window        Sep 2012 - Jan 2013        Apr 2012             Apr 2012              Apr 2012
                  Window in Months              82 - 86                 77                   77                    77



                                                                          
                  ---------------------------------------------------------------------------------------
                  CDR                           4.00%                4.00%                 4.00%
                  ---------------------------------------------------------------------------------------
                  CPR                            5%                   10%                   10%
                  ---------------------------------------------------------------------------------------
                  CPY                           100%                  100%                 100%
                  ---------------------------------------------------------------------------------------
                  CDR Months Delay               24                    12                   24
                  ---------------------------------------------------------------------------------------
                  Recovery Delay                 12                    12                   12
                  ---------------------------------------------------------------------------------------
                  Loss Severity                  35%                  35%                   35%
                  ---------------------------------------------------------------------------------------
                  Ext Mths                        0                    0                     0
                  ---------------------------------------------------------------------------------------
                  Ext %                          0%                    0%                   0%
                  ---------------------------------------------------------------------------------------


Balance
       75,000,000 WAL                           6.44                  6.31                 6.44
                  Principal Window            Apr 2012        Oct 2011 - Apr 2012        Apr 2012
                  Window in Months               77                 71 - 77                 77


       50,000,000 WAL                           6.44                  6.44                 6.44
                  Principal Window            Apr 2012              Apr 2012             Apr 2012
                  Window in Months               77                    77                   77


       25,000,000 WAL                           6.44                  6.44                 6.44
                  Principal Window            Apr 2012              Apr 2012             Apr 2012
                  Window in Months               77                    77                   77


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