GeForce GT 230 vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which comes with a GPU core clock speed of 1018 MHz, and 4096 MB of GDDR5 RAM set to run at 1250 MHz through a 512-bit bus. It also features 2816 SPUs, 176 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
Radeon R9 295X2		500 Watts
	Difference: 435 Watts (669%)

Memory Bandwidth

In theory, the Radeon R9 295X2 should be quite a bit faster than the GeForce GT 230 overall. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 601600 (1567%)

Texel Rate

The Radeon R9 295X2 will be quite a bit (about 3972%) better at AF than the GeForce GT 230. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 349536 (3972%)

Pixel Rate

The Radeon R9 295X2 should be quite a bit (approximately 2861%) better at AA than the GeForce GT 230, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 125904 (2861%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.