GeForce GTS 250 1GB vs GeForce GTX 950

Intro

Compare those specs to the GeForce GTX 950, which uses a 28 nm design. nVidia has clocked the core frequency at 1024 MHz. The GDDR5 memory works at a speed of 1652 MHz on this specific card. It features 768 SPUs along with 48 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 55 Watts (61%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 950 should be quite a bit faster than the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 950		105728 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 35328 (50%)

Texel Rate

The GeForce GTX 950 will be a bit (about 4%) more effective at texture filtering than the GeForce GTS 250 1GB. (explain)

GeForce GTX 950		49152 Mtexels/sec
GeForce GTS 250 1GB		47232 Mtexels/sec
	Difference: 1920 (4%)

Pixel Rate

The GeForce GTX 950 is quite a bit (about 178%) more effective at full screen anti-aliasing than the GeForce GTS 250 1GB, and also will be able to handle higher resolutions more effectively. (explain)

GeForce GTX 950		32768 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 20960 (178%)

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 data (measured in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.