The battle between ATi and Nvidia seems to be getting fiercer everyday and each one of them is trying to gain the upper hand be releasing new, faster and better GPUs every now and then. Today, nvidia has released GTX 275 which is a lower variant of GTX 285 and ATi has thrown in HD 4890 which is a slightly faster HD 4870. Both are based on the same 55nm fabrication process and not 40nm and both are similarly priced.
HD 4890
4890 is slightly higher clocked than 4870 to start with. It also has 1 GB GDDR5 memory as opposed to 4870’s 512MB (though we did see some manufacturers releasing 1GB variants). Power consumption under full stress is about 30W higher than the 4870.
GTX 275
It is clocked slightly slower than GTX285, has 896 MB 448-bit memory. It needs two 6-pin power connectors. The temperature can be anywhere between 45 degrees in idle mode and about 80 degrees under full load.
Far Cry 2
Clear victory for team green.
Call of Duty : World at War
4890 leads up to 1929x1200 but both cards show equal performance at 2560x1600.
Crysis Warhead
Victory for Nvidia Here
Verdict
At nearly the same price and performance, the choice is pretty much yours. Mind you, none of them offers anything revolutionary compared to their predecessors. So a 4870 or GTX 260 SP216 will do just fine with even lower prices. ATi has an advantage of being DirectX 10.1 capable so expect a performance increase in compatible games.
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