GeForce GTX 465 vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which features GPU clock speed of 1020 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 465		200 Watts
	Difference: 145 Watts (264%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should theoretically be much superior to the GeForce GTX 750 in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 22592 (28%)

Texel Rate

The GeForce GTX 750 is a lot (approximately 22%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 5932 (22%)

Pixel Rate

The GeForce GTX 465 should be a little bit (more or less 19%) better at full screen anti-aliasing than the GeForce GTX 750, and also capable of handling higher resolutions more effectively. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 3104 (19%)

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 maximum amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better 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 most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.