GeForce GT 340 1GB vs GeForce GTX 295

Intro

Compare those specifications to the GeForce GTX 295, which has a clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also makes use of a 448-bit bus, and uses a 55 nm design. It is comprised of 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 295		289 Watts
	Difference: 220 Watts (319%)

Memory Bandwidth

The GeForce GTX 295 should in theory be quite a bit faster than the GeForce GT 340 1GB in general. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 169376 (311%)

Texel Rate

The GeForce GTX 295 should be quite a bit (about 424%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 74560 (424%)

Pixel Rate

The GeForce GTX 295 will be much (approximately 633%) better at AA than the GeForce GT 340 1GB, and able to handle higher resolutions more effectively. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 27856 (633%)

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: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.