GeForce GTX 1630 vs GeForce GTX 950

Intro

Compare all that to the GeForce GTX 950, which comes with a core clock speed of 1024 MHz and a GDDR5 memory frequency of 1652 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It features 768 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1630		75 Watts
GeForce GTX 950		90 Watts
	Difference: 15 Watts (20%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950 should be 8% faster than the GeForce GTX 1630 in general, due to its higher bandwidth. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GTX 1630		98304 MB/sec
	Difference: 7424 (8%)

Texel Rate

The GeForce GTX 1630 is a little bit (about 13%) faster with regards to AF than the GeForce GTX 950. (explain)

GeForce GTX 1630		55680 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 6528 (13%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 950 is a better choice, though only just barely. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 1630		27840 Mpixels/sec
	Difference: 4928 (18%)

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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.