2GHz? Where exactly?

[TheGreatSatan]

I tested the Radeon HD4830 (For my Cuda Mod) in my Windows 7 system and ran GPU-Z.

The box clearly says it's 2GHz

http://www.pcmodhouse.com/sitebuildercontent/sitebuilderpictures/p1030549.jpg

Where does it say that in GPU-Z?

http://www.pcmodhouse.com/sitebuildercontent/sitebuilderpictures/gpu_z.jpg

[rendermandan]

Looks like they took the 1004mhz from each memory and added them together. LOL
SO using that methodology, my quad core processor running at 2.8ghz is actually running at a wopping 11.2ghz. WOW. LMAO

[TheGreatSatan]

You should list it on ebay that way. You'd make a killing!

[crenn]

DDR = Dual Date Rate

1004MHz=2008MHz Effective

[rendermandan]

DDR = Dual Date Rate

1004MHz=2008MHz Effective

so what is DDR2 and DDR3?

3012mhz?

[SXRguyinMA]

:stupid: interesting indeed

[crenn]

so what is DDR2 and DDR3?

3012mhz?

No, they're revisions of sorts.

[mtekk]

DDR, DDR2, and DDR3 all only send data on the rising and falling edge of the clock signal, thus operating at "double data rate". DDR2 and DDR3 are revisions on DDR that use less power (run on lower voltages) and run faster due to higher clocks (achievable in part due to lower power consumption) and signaling changes.

[SXRguyinMA]

thanks for the info :D

[nevermind1534]

Only if it's double triple channel, do you get more bandwidth.

[mtekk]

Dual and triple channel (128bit and 192bit memory access) on the desktop work in the same way 128bit and 256bit memory on graphics cards. Each channel is only 64bit, so with more channels, effectively a wider data path, you can move more data per transaction (for DDR that'd be twice per a clock pulse). Theoretically, moving from single channel to dual channel can result in 2x the memory bandwidth (not the same as 2x the speed :) ).

I should also clarify a major difference (other than voltage) between DDR, DDR2, and DDR3. In DDR the memory chip frequency and I/O Bus frequency were the same. In DDR2, the I/O Bus frequency operates at 2x the memory chip frequency. In DDR3, the I/O Bus frequency operates at 4x the memory chip frequency.

Eventually, they'll probably try to go to a "quad pumped" setup where it sends data on all four parts of the clock wave (like Intel's FSB).

[Luke122]

Dual and triple channel (128bit and 192bit memory access) on the desktop work in the same way 128bit and 256bit memory on graphics cards. Each channel is only 64bit, so with more channels, effectively a wider data path, you can move more data per transaction (for DDR that'd be twice per a clock pulse). Theoretically, moving from single channel to dual channel can result in 2x the memory bandwidth (not the same as 2x the speed :) ).

I should also clarify a major difference (other than voltage) between DDR, DDR2, and DDR3. In DDR the memory chip frequency and I/O Bus frequency were the same. In DDR2, the I/O Bus frequency operates at 2x the memory chip frequency. In DDR3, the I/O Bus frequency operates at 4x the memory chip frequency.

Eventually, they'll probably try to go to a "quad pumped" setup where it sends data on all four parts of the clock wave (like Intel's FSB).

Easily the best explanation of this that I've ever read! Have some rep!

[SXRguyinMA]

I agree :bowdown: :D

[TheGreatSatan]

Ditto! +Rep