GeForce GT 130 vs GeForce GTX 650

Intro

Compare all that to the GeForce GTX 650, which features core speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GT 130		75 Watts
	Difference: 11 Watts (17%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 should perform quite a bit faster than the GeForce GT 130 overall. (explain)

GeForce GTX 650		80000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 68000 (567%)

Texel Rate

The GeForce GTX 650 will be a lot (approximately 182%) faster with regards to AF than the GeForce GT 130. (explain)

GeForce GTX 650		33856 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 21856 (182%)

Pixel Rate

The GeForce GTX 650 is a lot (more or less 112%) more effective at FSAA than the GeForce GT 130, and will be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 650		16928 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 8928 (112%)

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 (counted in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics card could possibly record 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 the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.