AMD 7770

Today is launch day for the Radeon 7770 and 7750. There are a few major brands which launch their reference and non reference cards. First up is ASUS,

Asus HD 7770

Asus released their Direct CU top for the HD 7770, althoug it does not have the DCU 2 top the card still performs excellent when overclocking. For this card Asus manage to ramp up the clock speed to 1020 MHz (1000MHz stock) it also has an overclock of 100MHz for the memory clock which is 4600 MHz and the 7770 has a 128-bit memory interface. the rear I/O is 1 D-sub output, 1 DVI output, 1 HDMI output and 2 Mini display ports.

Asus HD 7750

The HD 7750 from AMD is the little brother of the HD 7770. this is a single card slot and will not be availble for crossfire. this card features slightly overclocked speeds, with the core clocked at 820 MHz (800 MHz stock), and 1150 MHz (1125 MHz stock) memory. 


Source:Techpowerup, ASUS

 

Next ups is the XFX Radeon HD 7700 series of cards. XFX launched 9 card total for the HD 7700 series which are essentially based on two designs by the company, a single-fan Ghost Thermal Technology board, and a dual-fan Double Dissipation board, spread across both the HD 7770 and HD 7750 SKUs, and in a variety of factory-overclock bins such as Core Edition (AMD reference speeds), Black Edition (1095 MHz core for the HD 7770, TBD for HD 7750), and SuperOverclock Edition (1120 MHz core for the HD 7770, TBD for the HD 7750).

Source: Techpowerup

Sapphire HD 7770

Sapphire HD 7750

Next in line is the Sapphire cards. sapphire released 3 cards on launch day, the HD 7700 OC, the HD 7700 (stock frequencies), and a Radeon HD 7750. The HD 7770 cards use a custom design fan heatsink with an AMD reference design PCB that's colored Sapphire's signature shade of blue; while the HD 7750 card uses a fan-heatsink originally designed by Arctic Cooling, which Sapphire used on several mid-range cards in the past. The HD 7770 OC features clock speeds of 1150 MHz core, and 1250 MHz GDDR5 memory. The stock-frequency HD 7770 sticks to AMD reference speeds of 1000 MHz core, and 1125 MHz GDDR5 memory. The HD 7750 sticks to AMD reference clock speeds of 800 MHz core and 1125 MHz GDDR5 memory. Expect most common prices of $159 for the HD 7770 with a small premium for the OC model, and $109 for the HD 7750.

Source: Techpowerup

Next is the Gigabyte HD 7700 series of cards. like Sapphire Gigabyte also released 3 cards which are the Radeon HD 7770 GV-R777D5-1GD (AMD reference speeds), the Radeon HD 7770 GV-R777OC-1GD (factory overclocked speeds of 1100 MHz core, 4.50 GHz memory), and the Radeon HD 7750 GV-R775OC-1GI (factory overclocked speeds of 880 MHz core, 4.50 GHz memory). The company didn't release a reference-speed Radeon HD 7750. All three cards are based on non-reference board designs by Gigabyte, consisting of Ulra Durable VGA+ PCBs and optimized large-fan (translates to lower RPM, lower noise) fan-heatsinks.

Source: Techpowerup

Finally is MSI, they released 2 7700 series cards which are The R7770-2PMD1GD5/OC and R7750-PMD1GD5/OC. The R7770-2PMD1GD5/OC GPU core frequency can be overclocked by up to 32.4% using MSI's exclusive Afterburner graphics card overclocking utility to reach an amazing 1.35GHz*! MSI's R7700 series graphics cards also feature a customized dual-fan thermal design that effectively reduces the GPU operating temperature and ensures stable performance. Integrated support for 3D video, high-quality DisplayPort 1.2 and HDMI 1.4a outputs. This card also has support for next generation displays and AMD Eyefinity Multi-display technology. This also support triple overvoltage via the afterburner software.


Source: Techpowerup, MSI 7770, MSI 7750