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Why is my radeon hd 6670 not running at the specs amd says it does?

Last response: in Graphics & Displays
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January 17, 2013 11:52:50 PM

I have a radeon hd 6670 installed in an old aspire e380. This e380 is running an amd athlon 64 X2 4200+ at 2.2ghz. I have 3.5 gigs of ddr2 6400 memory running at 245mhz cpu/9 4-4-4-12-17-2T. Acer called this mobo em61sm/em61pm with a nvidia mcp61 chipset. The card is running 8 ROPs 480 Unified shaders .8gpixel fillrate 2.4gtexel fillrate gddr3 128 bit bus width 2048 memory size 4.8gb bandwidth 100 gpu clock 150 memory ( i am idle). when not idle its 800 clock and 667 memory. Amd says it runs 800 engine clock, 512-1gig gddr5 memory, 1000mhz memory clock (4 gbps gddr5), 64 gb/s memory bandwidth, 768 gflops single precision compute power, terrascale 2 unified processing architecture, 480 stream processing units, 24 texture units, 32 z/stencil rop units, 8 color rop units, and 128bit gddr5 memory interface. Why am I not doing the same? If you need additional info let me know.

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a c 84 U Graphics card
a b À AMD
January 17, 2013 11:57:37 PM

it is quite common that there are several versions of lower mid-range cards with different memory types and speeds, in this case you have the cheaper gddr3 version of the card. The gddr5 version is bit faster but both are official versions.
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January 18, 2013 12:05:58 AM

wow, wish I would've known that. well on another note, is it possible this card could run any faster. I have an overdrive option I am yet to mess with other than I enabled it. and if so would i get anything more out of it that would be worth it?
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a c 84 U Graphics card
a b À AMD
January 18, 2013 12:21:36 AM

yeah you can overclock at least some with the overdrive using the default voltages. increase the clocks a step or two at a time and run a benchmark for example Heaven, if you get artefacting or hangs/crashes even (or actually lower performance) then back down a bit.
Use GPU-Z to keep an eye on temps and what not (CCC wont log temps, GPU-Z can and it has short histogram graph thingie as well, thou it is unlikely to overheat on stock voltages but anyways.. anything under 80-90c is still fine)
http://unigine.com/products/heaven/
http://www.techpowerup.com/gpuz/
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January 18, 2013 12:31:06 AM

alright I will give it a whirl. have not used heaven as a benchmark. I use x2rt demo as a benchmark, is heaven better? I have gpu-z and cpu-z they are a must have.
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January 18, 2013 3:45:41 AM

I have an overdrive option I am yet to mess with other than I enabled it.
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a c 84 U Graphics card
a b À AMD
January 18, 2013 9:13:34 AM

covertslinky said:
alright I will give it a whirl. have not used heaven as a benchmark. I use x2rt demo as a benchmark, is heaven better? I have gpu-z and cpu-z they are a must have.

well heaven gives you a nice detailed score and is definitely gpu bound. but anything works as long as it puts proper load on the gpu.
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