GeForce 9400 GT 256MB vs GeForce GTX 1630

Intro

Compare those specs to the GeForce GTX 1630, which makes use of a 12 nm design. nVidia has clocked the core speed at 1740 MHz. The GDDR6 memory runs at a speed of 1500 MHz on this specific card. It features 512 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9400 GT 256MB		50 Watts
GeForce GTX 1630		75 Watts
	Difference: 25 Watts (50%)

Memory Bandwidth

Performance-wise, the GeForce GTX 1630 should in theory be quite a bit better than the GeForce 9400 GT 256MB overall. (explain)

GeForce GTX 1630		98304 MB/sec
GeForce 9400 GT 256MB		12800 MB/sec
	Difference: 85504 (668%)

Texel Rate

The GeForce GTX 1630 is a lot (approximately 1165%) faster with regards to AF than the GeForce 9400 GT 256MB. (explain)

GeForce GTX 1630		55680 Mtexels/sec
GeForce 9400 GT 256MB		4400 Mtexels/sec
	Difference: 51280 (1165%)

Pixel Rate

The GeForce GTX 1630 should be quite a bit (about 1165%) faster with regards to anti-aliasing than the GeForce 9400 GT 256MB, and will be able to handle higher screen resolutions better. (explain)

GeForce GTX 1630		27840 Mpixels/sec
GeForce 9400 GT 256MB		2200 Mpixels/sec
	Difference: 25640 (1165%)

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 megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.