GeForce GTX 650 vs GeForce GTX 950

Intro

Compare that to the GeForce GTX 950, which comes with core clock speeds of 1024 MHz on the GPU, and 1652 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs along with 48 TAUs and 32 Rasterization Operator 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 650		2263 points
	Difference: 4273 (189%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 950		90 Watts
	Difference: 26 Watts (41%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 950 should in theory be a lot superior to the GeForce GTX 650 overall. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 25728 (32%)

Texel Rate

The GeForce GTX 950 is a lot (about 45%) faster with regards to texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 15296 (45%)

Pixel Rate

The GeForce GTX 950 is a lot (more or less 94%) faster with regards to FSAA than the GeForce GTX 650, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 15840 (94%)

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 data (in units of MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.