GeForce 940M vs GeForce 9500 GT DDR2

Intro

Compare all that to the GeForce 9500 GT DDR2, which uses a 65 nm design. nVidia has set the core speed at 550 MHz. The DDR2 memory works at a speed of 500 MHz on this specific card. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so theoretically they should perform the same. (explain)

Texel Rate

The GeForce 940M is much (approximately 192%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 16928 (192%)

Pixel Rate

The GeForce 940M will be much (approximately 95%) faster with regards to FSAA than the GeForce 9500 GT DDR2, and also able to handle higher screen resolutions better. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 4176 (95%)

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 largest amount of data (measured in MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once 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, HDR and higher screen resolutions.

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

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