Soldato
- Joined
- 19 Feb 2007
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- 15,383
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As the title says, what is the main difference between the 2 cards and by how much, thanks in advance.
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ATI's 4870 and 4890, whats the difference ?
- Thread starter Dicehunter
- Start date
850 mhz vs 750 mhz clock speed while the memory is 900mhz vs 975mhz. Also all HD 4890s have 1GB of VRAM while the HD 4870 has 2 skus with 512MB or 1GB.
However, currently all HD 4890s have voltage control and it is possible to hit a clock speed of 1ghz. The HD 4870 can overclock to anywhere between 780-830mhz on average. Some HD 4870s do have voltage control though I believe so I guess they could be overclocked higher.
However, currently all HD 4890s have voltage control and it is possible to hit a clock speed of 1ghz. The HD 4870 can overclock to anywhere between 780-830mhz on average. Some HD 4870s do have voltage control though I believe so I guess they could be overclocked higher.
Caporegime
- Joined
- 8 Jan 2004
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- Rutland
4890 has a slightly improved cooler too.
Not much point in one if tbh. I read the review over at Guru3D.com and it scored in most benchmarks only a few FPS higher (as you'd guess) compared to a 4870. But for the price, you may as well stick with a 4870. However the 4890 does use less power at idle. 