GeForce 9500 GT 1GB GDDR3 vs GeForce GTX 870M

Intro

Compare those specifications to the GeForce GTX 870M, which uses a 28 nm design. nVidia has clocked the core frequency at 941 MHz. The GDDR5 RAM works at a speed of 1000 MHz on this specific card. It features 1344 SPUs along with 112 TAUs and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3		50 Watts
GeForce GTX 870M		110 Watts
	Difference: 60 Watts (120%)

Memory Bandwidth

Performance-wise, the GeForce GTX 870M should theoretically be much superior to the GeForce 9500 GT 1GB GDDR3 overall. (explain)

GeForce GTX 870M		96000 MB/sec
GeForce 9500 GT 1GB GDDR3		25600 MB/sec
	Difference: 70400 (275%)

Texel Rate

The GeForce GTX 870M should be a lot (more or less 1098%) more effective at AF than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce 9500 GT 1GB GDDR3		8800 Mtexels/sec
	Difference: 96592 (1098%)

Pixel Rate

The GeForce GTX 870M should be quite a bit (more or less 413%) more effective at AA than the GeForce 9500 GT 1GB GDDR3, and also able to handle higher screen resolutions better. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce 9500 GT 1GB GDDR3		4400 Mpixels/sec
	Difference: 18184 (413%)

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 max amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 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, HDR and high resolutions.

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

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