GeForce 9500 GT DDR2 vs GeForce GTX 965M

Intro

Compare those specs to the GeForce GTX 965M, which has core clock speeds of 944 MHz on the GPU, and 1000 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2		50 Watts
GeForce GTX 965M		60 Watts
	Difference: 10 Watts (20%)

Memory Bandwidth

The GeForce GTX 965M, in theory, should perform much faster than the GeForce 9500 GT DDR2 in general. (explain)

GeForce GTX 965M		64000 MB/sec
GeForce 9500 GT DDR2		16000 MB/sec
	Difference: 48000 (300%)

Texel Rate

The GeForce GTX 965M will be much (about 587%) faster with regards to AF than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 965M		60416 Mtexels/sec
GeForce 9500 GT DDR2		8800 Mtexels/sec
	Difference: 51616 (587%)

Pixel Rate

The GeForce GTX 965M is quite a bit (about 587%) more effective at anti-aliasing than the GeForce 9500 GT DDR2, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 965M		30208 Mpixels/sec
GeForce 9500 GT DDR2		4400 Mpixels/sec
	Difference: 25808 (587%)

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 information (counted in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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