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ATI Radeon HD 4870 Edition @ Hot Hardware
DailyTech's roundup of hardware reviews from around the web for Wednesday

ATI Radeon HD 4870 Edition
@ Hardware Canucks
@ AnandTech
@ Hot Hardware
@ Elite Bastards
@ Expreview
@ MadBoxPC
@ Ars Technica
@ TweakTown
@ PC Perspective
@ Bjorn3D
@ The Tech Report

Motherboards
Sapphire PURE Hybrid Crossfire 780G @ Hi-Techreviews.com

Power Supplies
Enermax MODU82+ 525W PSU @ Technic3D

Consumer Electronics
HTC Touch Diamond @ Trusted Reviews
Ricoh GX200 Digital Camera @ Trusted Reviews
Belkin TuneCast Auto with Clearscan for iPhone/iPod @ circuitREMIX

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RE: Anandtech Review
By Slaimus on 6/25/2008 4:23:42 PM , Rating: 2
I don't see how the X2 can cost less than 2x cards unless they cut something *ahem GDDR4*


RE: Anandtech Review
By thartist on 6/25/2008 6:04:28 PM , Rating: 2
It's GDDR3 or GDDR5. 4 is a generation that doesn't count... just like DirectX... and Winamp


RE: Anandtech Review
By Goty on 6/26/2008 12:48:28 AM , Rating: 2
Why is that? The HD3870 used GDDR4.


RE: Anandtech Review
By Warren21 on 6/27/2008 4:51:33 AM , Rating: 2
While ATI has used GDDR4, the marginal speed increase over high-clocking binned GDDR3 is offset by the higher latencies. GDDR4 usually clocks in the 1000-1200 MHz range on reference designs... That is not uncommon for high-clocked GDDR3, which still retains better latencies (albeit at higher power consumption).

GDDR5 is in effect almost QDDR (900 MHz GDDR5 = 3600 MHz GDDR3 effective speed) while providing a nice reduction in power requirements. Case in point:

HD 3870 @ 1125 MHz GDDR4 = 72 GB/s
HD 4850 @ 1000 MHz GDDR3 = 64 GB/s
HD 4870 @ 900 MHz GDDR5 = 115 GB/s


RE: Anandtech Review
By murphyslabrat on 6/30/2008 2:00:31 PM , Rating: 2
actually, qdr would be 900mhz=1800mhz, as DDR is doubled already


"If you look at the last five years, if you look at what major innovations have occurred in computing technology, every single one of them came from AMD. Not a single innovation came from Intel." -- AMD CEO Hector Ruiz in 2007









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