GeForce GT 220 GDDR3 vs GeForce GTX 750

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GT 220 GDDR3		58 Watts
	Difference: 3 Watts (5%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 will be 147% quicker than the GeForce GT 220 GDDR3 overall, because of its greater data rate. (explain)

GeForce GTX 750		80000 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 47616 (147%)

Texel Rate

The GeForce GTX 750 should be quite a bit (approximately 226%) more effective at texture filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 750		32640 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 22640 (226%)

Pixel Rate

The GeForce GTX 750 is a lot (approximately 226%) more effective at FSAA than the GeForce GT 220 GDDR3, and also should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 750		16320 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 11320 (226%)

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 (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.