GeForce GTX 465 vs Radeon R5 M230

Intro

Compare all that to the Radeon R5 M230, which uses a 28 nm design. AMD has clocked the core speed at 780 MHz. The DDR3 RAM is set to run at a frequency of 1000 MHz on this particular model. It features 320 SPUs as well as 20 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 465 should in theory be quite a bit better than the Radeon R5 M230 in general. (explain)

GeForce GTX 465		102592 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 86592 (541%)

Texel Rate

The GeForce GTX 465 will be much (about 71%) better at texture filtering than the Radeon R5 M230. (explain)

GeForce GTX 465		26708 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 11108 (71%)

Pixel Rate

The GeForce GTX 465 should be quite a bit (approximately 523%) better at AA than the Radeon R5 M230, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 465		19424 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 16304 (523%)

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 (in units of MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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