GeForce 810M vs GeForce 9400 GT 256MB

Intro

Compare those specifications to the GeForce 9400 GT 256MB, which comes with clock speeds of 550 MHz on the GPU, and 400 MHz on the 256 MB of GDDR2 memory. It features 16 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce 9400 GT 256MB		50 Watts
	Difference: 35 Watts (233%)

Memory Bandwidth

Performance-wise, the GeForce 810M should theoretically be just a bit better than the GeForce 9400 GT 256MB overall. (explain)

GeForce 810M		14400 MB/sec
GeForce 9400 GT 256MB		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 810M should be quite a bit (more or less 34%) faster with regards to anisotropic filtering than the GeForce 9400 GT 256MB. (explain)

GeForce 810M		5904 Mtexels/sec
GeForce 9400 GT 256MB		4400 Mtexels/sec
	Difference: 1504 (34%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 810M is the winner, and very much so. (explain)

GeForce 810M		2952 Mpixels/sec
GeForce 9400 GT 256MB		2200 Mpixels/sec
	Difference: 752 (34%)

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 (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units 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 that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.