GeForce GTX 295 vs GeForce GTX 465

Intro

Compare that to the GeForce GTX 465, which features GPU clock speed of 607 MHz, and 1024 MB of GDDR5 memory set to run at 802 MHz through a 256-bit bus. It also features 352 SPUs, 44 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce GTX 295		289 Watts
	Difference: 89 Watts (45%)

Memory Bandwidth

In theory, the GeForce GTX 295 should be much faster than the GeForce GTX 465 in general. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 121184 (118%)

Texel Rate

The GeForce GTX 295 should be a lot (more or less 245%) more effective at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 65452 (245%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 295 is a better choice, by far. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 12832 (66%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.