The new GTX470 is based on NVIDIA's NF100 Fermi chip which is being manufactured at TSMC using the 40-nm-process. On of the consequences of using 3.2 billion transistors is a high power consumption which is 215 Watts for this very card. Therefore the thing isn't exactly economical and a lot of heat is being generated under load. No matter if there is a GTX470 or GTX480 the chip itself is always the same. Apart from the clock, which is quite obvious, the differences you'll find when you look at the number of shader cores, ROPs and the memory interface. These thing vary between the different models.

	GTX 480	ASUS ENGTX470	ASUS EAH5870
Chip	GF100	GF100	RV870
Process	40 nm	40 nm	40 nm
Transistors	3.2 billion	3.2 billion	2.15 billion
GPU clock	700 MHz	607 MHz	725 MHz
Shader clock	1'401 MHz	1'215 MHz	850 MHz
Memory	1'536 MB GDDR5	1'280 MB GDDR5	1'024 MB GDDR5
Memory clock	1'848 MHz	1'676 MHz	2'000 MHz
Memory interface	384 Bit	320 Bit	256 Bit
Memory bandwidth	177'408 MB/s	134'000 MB/s	128'000 MB/s
TMUs	60	56	80
TAUs	60	56	80
Shader Cores	480 (1D)	448 (1D)	288 (5D)
ROPs	48 ROP	40 ROP	32 ROP
Shader model	SM 5	SM 5	SM 5
Maximum board power	250 Watt	215 Watt	188 Watt