And this is its power circuit:

Covered by a heat-spreader, the GT200b processor was manufactured on 55nm tech process on the second week of 2009. It is revision B3.

The GPU incorporates 240 unified shader processors, 80 texture-mapping units and 28 raster operators. Thus, the GeForce TX 275 nearly equals the GeForce GTX 285 functionally but its frequencies are lower: 633/1404MHz as opposed to 648/1476MHz. In fact, the difference is negligible in terms of resulting performance. The GPU frequencies are dropped to 300/600MHz when the card works in 2D mode.

The card is equipped with 896MB of GDDR3 memory in 0.83ns Samsung K4J52324QH-HJ08 chips.

The rated frequency of the memory chips is 2400MHz but the GeForce GTX 275 has a memory frequency of 2268MHz in 3D mode, which is 216MHz lower than that of the GeForce GTX 285. Besides, the GeForce GTX 275 has a 448-bit memory bus whereas the GTX 285 has a 512-bit bus. The memory frequency is dropped to 200MHz in 2D applications.

Here is a summary of the graphics card’s characteristics:

The GeForce GTX 275 is equipped with the same cooler as the GeForce GTX 285. You can learn about it in our earlier review, so I will only show you a photo of it:

Now let’s check out the graphics card’s temperature: 

So, the GeForce GTX 275 is a very hot graphics card and is no cooler than the Radeon HD 4890. However, its blower is much quieter than the blower installed on Radeons. I will discuss the noise factor later in this review, though.

I checked the card’s overclockability using its reference cooler working at 100% speed. As a result, I increased the GPU frequencies to 702/1557MHz (+10.9%) and the graphics memory frequency to 2522MHz (+11.2%).

That’s not much of a frequency gain, I should say. The good news is that the card’s GPU grew only 1°C hotter when overclocked.

The Zotac GeForce GTX 275 comes at a recommended price of $259.