GeForce GTX 295 vs GeForce GTX 650

Intro

Compare all that to the GeForce GTX 650, which features a core clock frequency of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 295		289 Watts
	Difference: 225 Watts (352%)

Memory Bandwidth

In theory, the GeForce GTX 295 should perform a lot faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 143776 (180%)

Texel Rate

The GeForce GTX 295 is quite a bit (approximately 172%) faster with regards to anisotropic filtering than the GeForce GTX 650. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 58304 (172%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 295 is superior to the GeForce GTX 650, by far. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 15328 (91%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video 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 most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.