GeForce GTX 950 vs Geforce GTX 680

Intro

Compare that to the Geforce GTX 680, which has a clock frequency of 1006 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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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 680		7650 points
GeForce GTX 950		6536 points
	Difference: 1114 (17%)

Ethereum Mining Hash Rate

Geforce GTX 680		16 Mh/s
GeForce GTX 950		10 Mh/s
	Difference: 6 (60%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
Geforce GTX 680		195 Watts
	Difference: 105 Watts (117%)

Memory Bandwidth

The Geforce GTX 680 should in theory be quite a bit faster than the GeForce GTX 950 in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 86528 (82%)

Texel Rate

The Geforce GTX 680 is a lot (more or less 162%) faster with regards to texture filtering than the GeForce GTX 950. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 79616 (162%)

Pixel Rate

The GeForce GTX 950 should be a small bit (more or less 2%) more effective at anti-aliasing than the Geforce GTX 680, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 576 (2%)

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: Bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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