You need $5.5M to store 1GB data in Ethereum Blockchain :D

Task	Gas Required	Cost (ETH)	Cost (USD)	Ops per ETH	Ops per USD
Add or subtract two integers	3	0.00000009	0.00002655	11111111.11	37664.78343
Add or subtract two integers 1 million times	3000000	0.09	26.55	11.11111111	0.03766478343
Multiply or divide two integers	5	0.00000015	0.00004425	6666666.667	22598.87006
Multiply or divide two integers 1 million times	5000000	0.15	44.25	6.666666667	0.02259887006
Compare two integers	3	0.00000009	0.00002655	11111111.11	37664.78343
Compare two integers 1 million times	3000000	0.09	26.55	11.11111111	0.03766478343
Create a new contract	32000	0.00096	0.2832	1041.666667	3.531073446
Create 1 million new contracts	32000000000	960	283200	0.001041666667	0.000003531073446
Save a 256-bit word to storage	20000	0.0006	0.177	1666.666667	5.649717514
Save 1 MB to storage (31250 256-bit words)	625000000	18.75	5531.25	0.05333333333	0.0001807909605
Save 1 GB to storage (1000 MB)	625000000000	18750	5531250	0.00005333333333	0.0000001807909605
Send 1 transaction	21000	0.00063	0.18585	1587.301587	5.380683347
Send 1 million transactions	21000000000	630	185850	0.001587301587	0.000005380683347
Include 1 byte (non-zero) in transaction data	68	0.00000204	0.0006018	490196.0784	1661.681622
Include 1 MB in transaction data	68000	0.00204	0.6018	490.1960784	1.661681622
Include 1 GB in transaction data (1000 MB)	68000000	2.04	601.8	0.4901960784	0.001661681622

Ethereum