GeForce GTX 650 vs GeForce GTX 750

Intro

Compare that to the GeForce GTX 750, which makes use of a 28 nm design. nVidia has clocked the core speed at 1020 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this specific model. It features 512 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 750		3958 points
GeForce GTX 650		2263 points
	Difference: 1695 (75%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 650		64 Watts
	Difference: 9 Watts (16%)

Memory Bandwidth

Both cards have the exact same bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The GeForce GTX 650 will be a small bit (more or less 4%) better at AF than the GeForce GTX 750. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 1216 (4%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 650 is the winner, but only just. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 608 (4%)

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: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 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, HDR and higher screen resolutions.

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

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