GeForce 9400 GT 256MB vs Radeon R5 M330

Intro

Compare that to the Radeon R5 M330, which uses a 28 nm design. AMD has clocked the core frequency at 1030 MHz. The DDR3 RAM works at a frequency of 900 MHz on this particular model. It features 320 SPUs along with 20 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R5 M330 should in theory be a little bit superior to the GeForce 9400 GT 256MB in general. (explain)

Radeon R5 M330		14400 MB/sec
GeForce 9400 GT 256MB		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The Radeon R5 M330 will be much (about 368%) more effective at AF than the GeForce 9400 GT 256MB. (explain)

Radeon R5 M330		20600 Mtexels/sec
GeForce 9400 GT 256MB		4400 Mtexels/sec
	Difference: 16200 (368%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R5 M330 is the winner, by far. (explain)

Radeon R5 M330		8240 Mpixels/sec
GeForce 9400 GT 256MB		2200 Mpixels/sec
	Difference: 6040 (275%)

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 (in units of megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, 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 worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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