GeForce GTS 150 vs GeForce GTX 750

Intro

Compare those specifications to the GeForce GTX 750, which has core clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTS 150		141 Watts
	Difference: 86 Watts (156%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 750 should in theory be quite a bit better than the GeForce GTS 150 in general. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 48000 (150%)

Texel Rate

The GeForce GTS 150 should be quite a bit (about 45%) more effective at AF than the GeForce GTX 750. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 14720 (45%)

Pixel Rate

The GeForce GTX 750 should be a lot (approximately 38%) better at AA than the GeForce GTS 150, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 4480 (38%)

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 data (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 get to the max fill rate.