Let the party begin 
HD 5870 Reviews:
AnandTech
AnandTech (Scaling Performance: X58 vs P55 Showdown)
Bit-Tech
Bit-Tech (Architecture Analysis)
Computerbase
Driverheaven
Extrahardware.cz
Firingsquad
Firingsquad (Overclocking the 5870)
Guru3D
Guru3D (Crossfire)
Guru3D (Eyefinity)
HardOCP
Hardware Canucks
Hardware Canucks (Sapphire Vapor-X 1GB)
HardwareLuxx.de
Hardware.info (Tri-Crossfire)
Hexus
Hexus (Crossfire)
Hot Hardware
Inside Hardware
Lab501.ro
Legion Hardware
LegitReviews
NordicHardware
News.ati-forum.de
PCGamesHardware
PCLab.pl (With Battleforge DX11 Benchmarks)
PC Perspective
PCPop (Eyefinity 6 Edition)
Rage3D
Rage3D (Sapphire Vapor-X 1GB)
Sweclockers.com
TechPowerUp!
TechPowerUp! (Crossfire)
TechReport
TweakTown
TweakTown (Crossfire)
Tomshardware
Tomshardware.it
XbitLabs
Summary:
Anandtech
"At the end of the day, with its impressive performance and next-generation feature set, the Radeon HD 5870 kicks off the DirectX 11 generation with a bang and manages to take home the single-GPU performance crown in the process. It’s without a doubt the high-end card to get."
Guru3D
"the reality is that the Radeon HD 5870 is dark, majestic and most definitely a killer."
HardOCP
"Through all of this, Eyefinity, DX11, DirectCompute 11, OpenCL, the Radeon HD 5870 remains true to the focus of just being a desirable gaming video card. One of the most impressive "features" is the fact that it doubles performance, yet remains within the same power envelope as the previous generation. This is impressive. The fact that you can get all of this for around $379 makes it a really good value with a tremendous price/performance ratio compared to the previous generation."
PCGamesHardware
"To make it short: The Radeon HD 5870 is the currently fastest single GPU graphics card on the market and definitely the better solution than any multi GPU solution."
The Tech Report
"The Radeon HD 5870 is the fastest GPU on the planet, with the best visual output, and the most compelling set of features."
HD 5850 Reviews:
Anandtech
Computerbase (Crossfire)
ComputerEd
DriverHeaven (HIS, XFX & Sapphire 5850 / 5870)
Firingsquad
Guru3D
Guru3D (Crossfire)
HardOCP
HardwareCanucks
HotHardware
Hexus (Crossfire)
Legitreviews
PCGamesHardware
PC Perspective
TechReport
Tomshardware (Crossfire)
TweakTown
Summary:
HardOCP
"For $259 the ATI Radeon HD 5850 smacks the competition then laughs.[---]We think the ATI Radeon HD 5850 is "THE" next-gen video card that gamers and hardware enthusiasts are going to flock to."
AnandTech
"For this fall, we're able to say something we haven't been able to say for quite some time: AMD has the high-end market locked up tight."
The Tech Report
"The Radeon HD 5850 manages to outshine the fastest single-GPU GeForce card overall while costing less, drawing less power, and producing less noise."
The Guru of 3D
"It's a little gem really."
PC Perspective
"The new Radeon HD 5850 is definitely the best card you can get in the $250 price range today and I think is my best overall pick for all gamers."
Hot Hardware
"Gamers in the market for a powerful graphics card, that supports all of the latest technologies, need look no further."
Legit Reviews
"The ATI Radeon HD 5850 is 15-25% slower than the Radeon HD 5870 graphics card, but it also is priced 32% less right off the bat. That, my friends, makes it a price versus performance winner!"
Tom's Hardware
"we’re perfectly comfortable calling the Radeon HD 5850 a solid buy for the reasons a gamer would buy a new graphics card today"
Go HERE for HD 5700 Reviews!

HD 5870 Reviews:
AnandTech
AnandTech (Scaling Performance: X58 vs P55 Showdown)
Bit-Tech
Bit-Tech (Architecture Analysis)
Computerbase
Driverheaven
Extrahardware.cz
Firingsquad
Firingsquad (Overclocking the 5870)
Guru3D
Guru3D (Crossfire)
Guru3D (Eyefinity)
HardOCP
Hardware Canucks
Hardware Canucks (Sapphire Vapor-X 1GB)
HardwareLuxx.de
Hardware.info (Tri-Crossfire)
Hexus
Hexus (Crossfire)
Hot Hardware
Inside Hardware
Lab501.ro
Legion Hardware
LegitReviews
NordicHardware
News.ati-forum.de
PCGamesHardware
PCLab.pl (With Battleforge DX11 Benchmarks)
PC Perspective
PCPop (Eyefinity 6 Edition)
Rage3D
Rage3D (Sapphire Vapor-X 1GB)
Sweclockers.com
TechPowerUp!
TechPowerUp! (Crossfire)
TechReport
TweakTown
TweakTown (Crossfire)
Tomshardware
Tomshardware.it
XbitLabs
Summary:
Anandtech
"At the end of the day, with its impressive performance and next-generation feature set, the Radeon HD 5870 kicks off the DirectX 11 generation with a bang and manages to take home the single-GPU performance crown in the process. It’s without a doubt the high-end card to get."
Guru3D
"the reality is that the Radeon HD 5870 is dark, majestic and most definitely a killer."
HardOCP
"Through all of this, Eyefinity, DX11, DirectCompute 11, OpenCL, the Radeon HD 5870 remains true to the focus of just being a desirable gaming video card. One of the most impressive "features" is the fact that it doubles performance, yet remains within the same power envelope as the previous generation. This is impressive. The fact that you can get all of this for around $379 makes it a really good value with a tremendous price/performance ratio compared to the previous generation."
PCGamesHardware
"To make it short: The Radeon HD 5870 is the currently fastest single GPU graphics card on the market and definitely the better solution than any multi GPU solution."
The Tech Report
"The Radeon HD 5870 is the fastest GPU on the planet, with the best visual output, and the most compelling set of features."
HD 5850 Reviews:
Anandtech
Computerbase (Crossfire)
ComputerEd
DriverHeaven (HIS, XFX & Sapphire 5850 / 5870)
Firingsquad
Guru3D
Guru3D (Crossfire)
HardOCP
HardwareCanucks
HotHardware
Hexus (Crossfire)
Legitreviews
PCGamesHardware
PC Perspective
TechReport
Tomshardware (Crossfire)
TweakTown
Summary:
HardOCP
"For $259 the ATI Radeon HD 5850 smacks the competition then laughs.[---]We think the ATI Radeon HD 5850 is "THE" next-gen video card that gamers and hardware enthusiasts are going to flock to."
AnandTech
"For this fall, we're able to say something we haven't been able to say for quite some time: AMD has the high-end market locked up tight."
The Tech Report
"The Radeon HD 5850 manages to outshine the fastest single-GPU GeForce card overall while costing less, drawing less power, and producing less noise."
The Guru of 3D
"It's a little gem really."
PC Perspective
"The new Radeon HD 5850 is definitely the best card you can get in the $250 price range today and I think is my best overall pick for all gamers."
Hot Hardware
"Gamers in the market for a powerful graphics card, that supports all of the latest technologies, need look no further."
Legit Reviews
"The ATI Radeon HD 5850 is 15-25% slower than the Radeon HD 5870 graphics card, but it also is priced 32% less right off the bat. That, my friends, makes it a price versus performance winner!"
Tom's Hardware
"we’re perfectly comfortable calling the Radeon HD 5850 a solid buy for the reasons a gamer would buy a new graphics card today"
Go HERE for HD 5700 Reviews!
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