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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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Anandtech Review
By Goty on 6/25/2008 2:09:21 AM , Rating: 4
At the risk of having my comment unread on the actual review, I just wanted to congratulate Anand and Derek on an extremely well put together review! While I'm not a hardware or software engineer and can only pretend I know all of what you're explaining in the article, what I was able to gather gave some great insights into both the RV770 and GTX200 architectures.

Now, if AMD/ATI can just introduce a 4870X2 at or under the $500 price point, things could get extremely interesting.




RE: Anandtech Review
By Clauzii on 6/25/2008 2:28:44 AM , Rating: 2
Haven't they been talking $449,-??


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


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