Sapphire HD7770 GHZ FleX Edition Review

1. Introduction2. Sapphire HD7770 GHZ FleX Edition3. Sapphire HD7770 GHZ FleX Edition (Super High Res Gallery)4. Testing Methodology5. Setting Up EyeFinity6. Synthetic: Unigine Heaven Benchmark7. Synthetic: 3DMark Vantage8. Synthetic: 3DMark 119. Image Quality: HQV Benchmark 2.010. Gaming: F1 2011 (1080p)11. Gaming: Alien V Predator (1080p)12. Gaming: Tom Clancy HAWX 2 (1080p)13. Gaming: Resident Evil 5 (1080p)14. Gaming: Far Cry 2 (1200p)15. Gaming: Total War: Shogun 2 (1080p & 720p)16. Gaming: Battlefield 3 (1080p)17. Technical: Thermal Dynamics18. Technical: Acoustics Performance19. Technical: Power Consumption20. Technical: Overclocking21. Closing Thoughts22. View All Pages

We have reviewed all of Sapphire's Flex cards to date and today we are looking at the latest, budget addition in their range, the HD7770 Flex GHZ Edition. Sapphire are shipping this card with a custom low noise cooling solution and we aim to find out if this is a high value for money, low cost solution for a gamer and workstation user on a strict budget.

Sapphire have been very active this year, releasing a slew of performance cards such as the HD7970 6GB Toxic Edition and HD7950 Vapor X Edition, in the high end. They also recently released the HD7750 Low Profile card, which I adopted to use in my space restricted media center system, downstairs. It would be fair to say that regardless of your budget, Sapphire have an AMD card to suit.

The ability to support three DVI monitors in Eyefinity mode and deliver a true Single Large Surface work area without the need for active adapters will prove invaluable for many people. Not only for gamers, but the audience who need multiple, accelerated displays for work oriented tasks, such as 3D rendering, photographic manipulation and video encoding.

Product	Sapphire HD7870 FleX Edition	Sapphire HD7770 GHZ FleX Edition	AMD HD7870	AMD HD7850
Core Clock speed	1050mhz	1000mhz	1000mhz	860mhz
Transistors	2.8B	1.5B	2.8B	2.8B
Stream Processors	1,280	640	1,280	1,024
Compute Performance	2.56 TFLOPS	1.28 TFLOPS	2.56 TFLOPS	1.76 TFLOPS
Texture Units	80	40	80	64
Texture Fillrate	80 GT/s	40 GT/s	80 GT/s	55.0 GT/s
ROPs	32	16	32	32
Pixel Fillrate	32.0 GP/s	16 GP/s	32.0 GP/s	27.52 GP/s
Z/Stencil	128	64	128	128
Memory Type	2GB GDDR5	1GB GDDR5	2GB GDDR5	2GB GDDR5
Memory Clock	1,250mhz	1,125mhz	1,200mhz	1,200mhz
Memory Data Rate	5.0 Gbps	4.5 Gbps	4.8 Gbps	4.8 Gbps
Memory Bandwidth	153.6 GB/s	72 GB/s	153.6 GB/s	153.6 GB/s

The Sapphire HD7770 FleX Edition is configured to AMD HD7770 GHZ reference clock speeds. The core speed is therefore set to 1,000mhz and the memory speed at 1,125mhz (4.5 Gbps effective).

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