GeForce GTX 260 Core 216 vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which has a GPU core clock speed of 1024 MHz, and 2048 MB of GDDR5 memory running at 1652 MHz through a 128-bit bus. It also is made up of 768 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 112 Watts (124%)

Memory Bandwidth

In theory, the GeForce GTX 260 Core 216 should be 6% faster than the GeForce GTX 950 overall, because of its higher data rate. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 6160 (6%)

Texel Rate

The GeForce GTX 950 will be a bit (about 19%) faster with regards to anisotropic filtering than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 7680 (19%)

Pixel Rate

The GeForce GTX 950 will be quite a bit (approximately 103%) more effective at AA than the GeForce GTX 260 Core 216, and also capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 16640 (103%)

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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many 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.