![HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards](http://www.hisdigital.com/UserFiles/product/H577F1GD-1600-1.jpg)
HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards
![HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards](http://www.hisdigital.com/UserFiles/product/H577F1GD-1600-3.jpg)
HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards
![i got an ATI Radeon HD 5770 Mac edition and it says it has 1gb vram on techpowerup but on generic PnP monitor it says it has 768 mb of vram als i got an ATI Radeon HD 5770 Mac edition and it says it has 1gb vram on techpowerup but on generic PnP monitor it says it has 768 mb of vram als](https://preview.redd.it/i-got-an-ati-radeon-hd-5770-mac-edition-and-it-says-it-has-v0-7jv4kp0visx91.png?width=404&format=png&auto=webp&s=30a268c5464a81c408e3ab3284271a7eea4c6c1b)
i got an ATI Radeon HD 5770 Mac edition and it says it has 1gb vram on techpowerup but on generic PnP monitor it says it has 768 mb of vram als
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![HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards](http://www.hisdigital.com/UserFiles/product/H577F1GD-ALL-1600.jpg)
HIS HD 5770 1GB (128bit) GDDR5 PCIe (DirectX 11/ Eyefinity) < HD 5700 Series < Desktop Graphics < Products | HIS Graphic Cards
![AMD Expands Award-Winning Line of Graphics Products with Introduction of ATI Radeon HD 5700 Series, Delivers Best-in-Class[1] Windows 7 Performance, DirectX® 11 Gaming and ATI Eyefinity Multi-Monitor Technology | WebWire AMD Expands Award-Winning Line of Graphics Products with Introduction of ATI Radeon HD 5700 Series, Delivers Best-in-Class[1] Windows 7 Performance, DirectX® 11 Gaming and ATI Eyefinity Multi-Monitor Technology | WebWire](https://img.youtube.com/vi/mlxILZuCb-g/hqdefault.jpg)