GeForce 9500 GT 512MB GDDR3 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which has a clock frequency of 1020 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It features 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 9500 GT 512MB GDDR3		50 Watts
GeForce GTX 750		55 Watts
	Difference: 5 Watts (10%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 should perform a lot faster than the GeForce 9500 GT 512MB GDDR3 overall. (explain)

GeForce GTX 750		80000 MB/sec
GeForce 9500 GT 512MB GDDR3		25600 MB/sec
	Difference: 54400 (213%)

Texel Rate

The GeForce GTX 750 should be quite a bit (approximately 271%) faster with regards to anisotropic filtering than the GeForce 9500 GT 512MB GDDR3. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce 9500 GT 512MB GDDR3		8800 Mtexels/sec
	Difference: 23840 (271%)

Pixel Rate

The GeForce GTX 750 will be much (approximately 271%) better at full screen anti-aliasing than the GeForce 9500 GT 512MB GDDR3, and will be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce 9500 GT 512MB GDDR3		4400 Mpixels/sec
	Difference: 11920 (271%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of 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.