DDR4 really makes a difference?
i wouldve been more impressed if it was 4670x2 xD
i wouldve been more impressed if it was 4670x2 xD
[TPU]GeCube Pairs Radeon HD 4670 with GDDR4 Memory
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| Following Sapphire's move to create a Radeon HD 4670 SKU with GDDR4 memory, GeCube has one of its own, ready for launch. The RV730-based graphics card has 512 MB of GDDR4 memory, across a 128-bit wide memory interface. It uses a simplistic design for its PCB and cooler. The card draws all its power from the PCI-Express slot. The clock speeds on this card differ from the reference ATI specifications. The core is clocked at 750 MHz, with the GDDR4 memory at 2200 MHz. With the memory speed on offer not much higher than what GDDR3 offers, the inclusion of GDDR4 looks more like a dressing to the SKU. It remains to be seen if the memory benefits from overclocking, to overcome the bottlenecks of the narrow memory bus. Rest of its specifications are standard: 320 stream processors, DirectX 10.1 compliance, and support for ATI CrossFireX technology. It is yet to be priced. |
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looks like a real good card
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Well, if the memory clock can go up a bit it would sort-of reduce how crappy the 128-bit bus is.
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although, these 4670's with GDDR4 are probably the fastest cards that don't require external power (and by external i mean additional 6-pin pci-e)
EDIT: Since regular 4670's are better than the 3850's, I would imagine this would be right between a 3850 and a 3870
Originally Posted by vicious_fishes 4670x2 would be a brilliant card... so just how much more is gddr4 over gddr3 ? |
although, these 4670's with GDDR4 are probably the fastest cards that don't require external power (and by external i mean additional 6-pin pci-e)
EDIT: Since regular 4670's are better than the 3850's, I would imagine this would be right between a 3850 and a 3870
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That's awesome, I might get one to keep the cost of my next build down.
Originally Posted by johonm333 EDIT: Since regular 4670's are better than the 3850's, I would imagine this would be right between a 3850 and a 3870 |
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4670x2 gddr4 Quadfire?
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The 4670 GDDR4 is only $90ish after shipping on newegg SAPPHIRE HD4670 512mb GDDR4
Originally Posted by darksideleader gecube 2600XTx2 was a fail, 4670x2... lets not go there. |
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Originally Posted by Exar Kun That's awesome, I might get one to keep the cost of my next build down. |
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k i googled a review & 4670 crossfire comes in just above 4850 - 5% or so. now add gddr4, and i'd say we've got a winner. over here in aussieland you can buy 2x4670's for less than a 4850.
Originally Posted by johonm333 Well, if the memory clock can go up a bit it would sort-of reduce how crappy the 128-bit bus is.
although, these 4670's with GDDR4 are probably the fastest cards that don't require external power (and by external i mean additional 6-pin pci-e) EDIT: Since regular 4670's are better than the 3850's, I would imagine this would be right between a 3850 and a 3870 |
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4670x2 would be an excellent card!!!
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Yeah, probably around there.
I think, though, that it won't be THAT much of an increase from the GDDR3 version, if any. I've monitored the VRAM usage while gaming (I'm at 1280x1024), and with Crysis on High (one or two settings at medium) with no AA, VRAM never really goes beyond about 450-470MB with my gpu @ 850MHz and mem @ 2100MHz. Wonder if the card really has the headroom to benefit from GDDR4? My gut feeling is I don't think the bus width or the memory bandwidth is really what limits these 4670's--I think it's the reduced number of SP's (in comparison to the 4850 and 4870). Hoping someone here gets their hands on one of the GDDR4 cards and can do some benchies...? Maybe even someone who has a GDDR3 version too?
Originally Posted by vicious_fishes 4670x2 would be a brilliant card... so just how much more is gddr4 over gddr3 ? |
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Originally Posted by johonm333 Well, if the memory clock can go up a bit it would sort-of reduce how crappy the 128-bit bus is.
although, these 4670's with GDDR4 are probably the fastest cards that don't require external power (and by external i mean additional 6-pin pci-e) EDIT: Since regular 4670's are better than the 3850's, I would imagine this would be right between a 3850 and a 3870 |
I think, though, that it won't be THAT much of an increase from the GDDR3 version, if any. I've monitored the VRAM usage while gaming (I'm at 1280x1024), and with Crysis on High (one or two settings at medium) with no AA, VRAM never really goes beyond about 450-470MB with my gpu @ 850MHz and mem @ 2100MHz. Wonder if the card really has the headroom to benefit from GDDR4? My gut feeling is I don't think the bus width or the memory bandwidth is really what limits these 4670's--I think it's the reduced number of SP's (in comparison to the 4850 and 4870). Hoping someone here gets their hands on one of the GDDR4 cards and can do some benchies...? Maybe even someone who has a GDDR3 version too?
how much will it sell anyways?
will it perform close enough to the 4830?
but i think the 4770 is still the better buy
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will it perform close enough to the 4830?
but i think the 4770 is still the better buy
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Then why is it clocked slower than the GDDR3 on my 9800GTX+?
Originally Posted by Aaroman gddr4 can hand much higher clocks than gddr3 |
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heck it's pointless to compare clocks with ati cards and nvidia coz they use different architectures.
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Originally Posted by nathris Then why is it clocked slower than the GDDR3 on my 9800GTX+? |
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Because the 4830 has a 256-bit memory bus, which has plenty of throughput so the card doesn't need higher-bandwidth memory. The 4670 "apparently" needs higher bandwidth memory to overcome the smaller bus. But on the 4830, going to GDDR4 wouldn't show any performance increase since the limiting factor is not the memory bandwidth or bus width.
I know it was only like a few posts ago, but I still say that going to GDDR4 on the 4670 won't really provide much improvement if any.
Originally Posted by Playapplepie Why does this th9ing get GDDR4 but not the 4830? I CALL SHENANIGANZ |
I know it was only like a few posts ago, but I still say that going to GDDR4 on the 4670 won't really provide much improvement if any.
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