GeForce GTX 580 vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which comes with GPU core speed of 1024 MHz, and 2048 MB of GDDR5 memory set to run at 1652 MHz through a 128-bit bus. It also is comprised of 768 Stream Processors, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 950		6536 points
GeForce GTX 580		4956 points
	Difference: 1580 (32%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTX 580		244 Watts
	Difference: 154 Watts (171%)

Memory Bandwidth

The GeForce GTX 580, in theory, should be much faster than the GeForce GTX 950 overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 86656 (82%)

Texel Rate

The GeForce GTX 580 will be a small bit (about 1%) better at anisotropic filtering than the GeForce GTX 950. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 256 (1%)

Pixel Rate

The GeForce GTX 580 will be a bit (approximately 13%) faster with regards to FSAA than the GeForce GTX 950, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 950		32768 Mpixels/sec
	Difference: 4288 (13%)

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

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.