HIS RADEON HD 5770 HIS Radeon HD 5770 is compared to Palit GeForce GTS 450 Sonic. HIS Radeon HD 5770 has 4% lower Clock Speed and 19% faster memory compared to Palit GeForce GTS 450 Sonic. The main problem HIS Radeon HD 5770 is it's cost which is 10% more expensive than Palit GeForce GTS 450 Sonic. Synthetic benchmarks are:- 3dmark 2006, 3dmark Vantage, 3dmark 11, Computemark, Furmark, Lightsmark, Physxmark, Shadertoy, Tessmark, Stone Giant and Unigine Heavan. Games for testing are Aliens vs Predator, Hawk 2, Final Fantasy XIV, Lost Planet 2 and Mafia 2."

HIS RADEON HD 7770 HIS Radeon HD 7770 is Capeverde at 1000Mhz and 1GB GDDR5 at 4500Mhz. HIS Radeon HD 7770 has 128Bit Memory Interface, 640 Shaders and DirectX 11. HIS Radeon HD 6850 uses Barts at 775Mhz and 1GB GDDR5 at 4000Mhz. HIS Radeon HD 6850 has 256Bit Memory Interface, 960 Shaders and DirectX 11. Software used was 3dmark 2006, 3dmark Vantage, 3dmark 11, Computemark, Stone Giant, Tessmark, AVP, Final Fantasy XIV and Resident Evil 6."

SAPPHIRE RADEON HD 7790 Sapphire Radeon HD 7790 is Bonaire clocked at 1000Mhz with 1GB GDDR5 clocked at 6000mhz."

MSI RADEON HD 7770 uses Capeverde GPU at 1000Mhz and has 1GB GDDR5 memory running at 4500Mhz. MSI Radeon HD 7770 has 128Bit Memory Interface, 640 Shaders and DirectX 11."

XFX RADEON R9 390 XFX Radeon R9 390 is clocked at 1050Mhz with 8GB GDDR5 clocked at 6000mhz. XFX Radeon R9 390 has memory interface of 512bit with 2816 shaders with directx 11.2. Software used was:- Battlefield Hardline, Crysis 3, Dying Light, Metro Radux, Sleeping Dogs, Watch Dogs, Witcher 3 and Final Result. CPU used was AMD FX 8350 with Gigabyte GA78LMT S2P Motherboard using Windows 8 Operating System."

SAPPHIRE RADEON R9 390 Sapphire Radeon R9 390 at 1055Mhz with 8GB GDDR5 Sapphire Radeon R9 390 is 512Bit with 2816 shaders with 275 TDP. Sapphire Radeon R9 290 at 1000Mhz with 4GB GDDR5 Sapphire Radeon R9 290 is 512Bit with 2816 shaders with 250 TDP. Benchmarks:- Battlefield 4, Bioshock Infinite, Crysis 3, Metro Last Light, Sleeping Dogs, Thief, Tomb Raider and Watch Dogs.