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Gigabyte GV-R477D5-512H-B Radeon HD 4770 Videocard Review

Gigabyte GV-R477D5-512H-B Radeon HD 4770 Videocard Review - PCSTATS
Abstract: ATI's Radeon HD 4770 (code name RV740) is derived from the venerable Radeon RV770 GPU. The Gigabyte GV-R477D5-512H-B videocard has its GPU clocked at 750MHz and is equipped with 512MB GDDR5 memory running at 800MHz, giving it a bandwidth of 51.2 GB/s.
 83% Rating:   
Filed under: Video Cards Published:  Author: 
External Mfg. Website: Gigabyte May 13 2009   Max Page  
Home > Reviews > Video Cards > Gigabyte GV-R477D5-512H-B

Conclusion - Mainstream to the Power of Two

Gigabyte's GV-R477D5-512H is a fine example of what to expect from the Radeon HD 4770 videocard. It outperforms the Geforce 9600GT and ATI Radeon HD 4670 / 4830 class videocards that hover around the same price point, while still trading blows with more expensive solutions like the ATI Radeon HD 4850 and nVidia Geforce GTS 250 videocards.

While a hundred-dollar videocard that performs like a $200 graphics card is one thing, seeing a $220 dual-Radeon HD 4770 solution outperform $500 videocards is fantastic. When the Gigabyte GV-R477D5-512H-B is placed in Crossfire with another Radeon HD 4770 videocard, the performance increase is substantial.

When playing shader-intensive games like Crysis and Far Cry 2, the Crossfire'd Radeon HD 4770 pair is a force to reckoned with. When graphics settings are maxed out at 1920 x 1200 resolution, the two Radeon HD 4770 videocards in Crossfire are outperform the Radeon HD 4890, and give the Radeon HD 4870 X2 a serious run for its money.

Of course, there are a few drawbacks to running in Crossfire mode. Lost Planet and Call of Juarez didn't take advantage of the second HD 4770GPU at all, at times not registering any gains in performance, or even worse, seeing FPS nosedive. These results are more typical of games that were released two or more years ago, newer titles have improved Crossfire support dramatically. In most situations where Crossfire worked effectively, a pair of Radeon HD 4770s are able to hold their own against more expensive solutions like the Radeon HD 4890.

Overclocking the Gigabyte GV-R477D5-512H-B videocard was easy, it only took a few steps in ATI Catalyst Control center to push the core GPU clockspeed from 750MHz up to 830MHz, and the 512MB of GDDR5 memory from 3200MHz up to 3400MHz. With both of the Radeon HD 4770 videocards overclocked to these speeds, in Crossfire mode, they were able to achieve the highest score PCSTATS has recorded in 3DMark06 to date - 14901 3DMarks.

Thanks to a die-shrink to 40nm, the ATI R740 GPU is significantly more energy-efficient when compared to GPUs with equivalent graphical power manufactured on larger processing technologies. A system using an Intel E8400 processor and the Gigabyte GV-R477D5-512H-B videocard drew 187 watts under heavy GPU load, and two Radeon HD 4770s in Crossfire drew 279W under peak load. This is a dramatic improvement over last-generation's 90nm GPUs like the Geforce 8800GTX, where a single videocard could draw 350W of power!

The lower power requirements are also complemented by significant reductions in both heat and noise output, even when the Gigabyte GV-R477D5-512H-B was Crossfire'd with another Radeon HD 4770, the videocards remained warm and fairly quiet - not finger burning hot.

The best part is that Crossfire is so widely supported right now on both Intel and AMD motherboards that it's easy to pick up a single Gigabyte GV-R477D5-512H-B videocard today, and throw in a second Radeon HD 4770 card as an easy upgrade later on. Matching up $220 of gaming videocards with a $220 processor is a recipe for an affordable gaming rig if I ever saw one. The Gigabyte GV-R477D5-512H-B videocard is a fine value on its own, but two of them together give an edge in that sliver of a world where affordable videocards exist. I like the Radeon HD 4770, I like two of them even better!

PCSTATS Best Value Award

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Contents of Article: Gigabyte GV-R477D5-512H-B
 Pg 1.  Gigabyte GV-R477D5-512H-B Radeon HD 4770 Videocard Review
 Pg 2.  Crossfire'd HD4770's - Twice the Value?
 Pg 3.  Overclocking, Power Draw, Test System Specs
 Pg 4.  Videocard Benchmarks: 3DMark06
 Pg 5.  DX10 Videocard Benchmarks: 3DMark Vantage, Crysis
 Pg 6.  DX10 Videocard Benchmarks: Call of Juarez
 Pg 7.  DX10 Videocard Benchmarks: Lost Planet
 Pg 8.  Videocard Benchmarks: FEAR
 Pg 9.  AA/AF Videocard Benchmarks: FEAR
 Pg 10.  AA/AF Videocard Benchmarks: Crysis
 Pg 11.  — Conclusion - Mainstream to the Power of Two

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