HIS Radeon HD 7750 & HD 7770 CrossFire Review 19

HIS Radeon HD 7750 & HD 7770 CrossFire Review



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Today, AMD launched its Radeon HD 7700 series to solidify its competitiveness in the sub-$200 graphics card market segment. The launch consists of the Radeon HD 7770 and Radeon HD 7750, both capable of 2-way CrossFire. While we don't expect anyone to buy two HD 7700 series in one go, since there could (we're figuring that out in this review) be better single graphics card options in higher price points, CrossFire capability allows users incremental upgrades.

People can get one HD 7700 series graphics card now, and add on a second card later, as their performance needs go up. A CrossFire upgrade could also let people game on higher resolutions than what a single HD 7700 series graphics card is meant for, so really, the 'incremental upgrade' argument is the only sensible way we see people buying two of these cards.

What's more, AMD's architecture allows you to pair between different SKUs in a series. For example, you can pair a Radeon HD 7770 with a Radeon HD 7750, so that adds a lot of flexibility. In this review, we will measure the performance of two HD 7770 in CrossFire, and two HD 7750 in CrossFire.

But before you proceed, make sure you have a clear understanding of what the HD 7700 series as single-card solutions are all about, go through any of the reviews linked below.
HD 7750 and 7770 CrossFire Review Market Segment Analysis
HD 5770
HD 7750
GTX 550 Ti
HD 6790
HD 6850
GTX 460
GTX 460
HD 6870
HD 7770
GTX 560
GTX 560 Ti
HD 7750 CrossFire
HD 6950
HD 7770 Crossfire
GTX 570
HD 6970
Shader Units80051219280096033633611206403363842x 51214082x 6404801536
ROPs16162416322432321632322x 16322x 164032
Graphics ProcessorJuniperCape VerdeGF116BartsBartsGF104GF104BartsCape VerdeGF114GF1142x Cape VerdeCayman2x Cape VerdeGF110Cayman
Transistors1040M1500M1170M1700M1700M1950M1950M1700M1500M1950M1950M2x 1500M2640M2x 1500M3000M2640M
Memory Size1024 MB1024 MB1024 MB1024 MB1024 MB768 MB1024 MB1024 MB1024 MB1024 MB1024 MB2x 1024 MB2048 MB2x 1024 MB1280 MB2048 MB
Memory Bus Width128 bit128 bit192 bit256 bit256 bit192 bit256 bit256 bit128 bit256 bit256 bit2x 128 bit256 bit2x 128 bit320 bit256 bit
Core Clock850 MHz800 MHz900 MHz840 MHz775 MHz675 MHz675 MHz900 MHz1000 MHz810 MHz823 MHz800 MHz800 MHz1000 MHz732 MHz880 MHz
Memory Clock1200 MHz1125 MHz1026 MHz1050 MHz1000 MHz900 MHz900 MHz1050 MHz1125 MHz1002 MHz1002 MHz1125 MHz1250 MHz1125 MHz950 MHz1375 MHz

Test System

Test System - VGA Rev. 16
CPU:Intel Core i7 920 @ 3.8 GHz
(Bloomfield, 8192 KB Cache)
Motherboard:Gigabyte X58 Extreme
Intel X58 & ICH10R
Memory:3x 2048 MB Mushkin Redline XP3-12800 DDR3
@ 1520 MHz 8-7-7-16
Harddisk:WD Caviar Blue WD5000AAKS 500 GB
Power Supply:Antec HCP-1200 1200W
Software:Windows 7 64-bit Service Pack 1
Drivers:NVIDIA: 285.62
ATI: Catalyst 11.12
HD 7950 & 7970: 8.921.2 RC11
HD 7750 & HD 7770: 8.932.2
Display: LG Flatron W3000H 30" 2560x1600
Benchmark scores in other reviews are only comparable when exactly the same hardware & software configuration is used as in this review.
  • All video card results were obtained on this exact system with the exact same configuration.
  • All games were set to their highest quality setting unless indicated otherwise.
  • AA and AF are applied via in-game settings, not via the driver's control panel.
Each benchmark was tested at the following settings and resolution:
  • 1024 x 768, No Anti-aliasing. This is a standard resolution without demanding display settings.
  • 1280 x 1024, 2x Anti-aliasing. Common resolution for most smaller flatscreens today (17" - 19"). A bit of eye candy turned on in the drivers.
  • 1680 x 1050, 4x Anti-aliasing. Most common widescreen resolution on larger displays (19" - 22"). Very good looking driver graphics settings.
  • 1920 x 1200, 4x Anti-aliasing. Typical widescreen resolution for large displays (22" - 26"). Very good looking driver graphics settings.
  • 2560 x 1600, 4x Anti-aliasing. Highest possible resolution for commonly available displays (30"). Very good looking driver graphics settings.

Aliens vs. Predator

Aliens vs. Predator is based on a merger of the Aliens and the Predators franchise: two legendary alien species that are in conflict with each other, fighting to the death with human marines caught in between. The first person shooter game was developed by Rebellion Studios, who also developed the first AVP PC title and released in February 2010. It is one of the first DirectX 11 games with support for new features like tesselation, which is why AMD heavily promoted it at the time of their DX 11 card launches. We use the AVP benchmark utility with tesselation and advanced DX11 shadows enabled.

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May 19th, 2022 22:10 EDT change timezone

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