GeForce GT 340 vs GeForce GTX 260

Intro

Compare all of that to the GeForce GTX 260, which features GPU core speed of 576 MHz, and 896 MB of GDDR3 RAM running at 999 MHz through a 448-bit bus. It also is made up of 192 SPUs, 64 Texture Address Units, and 28 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 260		182 Watts
	Difference: 113 Watts (164%)

Memory Bandwidth

In theory, the GeForce GTX 260 should perform quite a bit faster than the GeForce GT 340 in general. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 57488 (106%)

Texel Rate

The GeForce GTX 260 should be a lot (approximately 109%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 260		36864 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 19264 (109%)

Pixel Rate

The GeForce GTX 260 will be a lot (approximately 267%) more effective at anti-aliasing than the GeForce GT 340, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 260		16128 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 11728 (267%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.