GeForce GTX 465 vs Radeon R9 M290X

Intro

Compare all of that to the Radeon R9 M290X, which uses a 28 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this card. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
GeForce GTX 465		200 Watts
	Difference: 100 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M290X should theoretically be quite a bit better than the GeForce GTX 465 in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 51008 (50%)

Texel Rate

The Radeon R9 M290X is quite a bit (more or less 155%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 41292 (155%)

Pixel Rate

The Radeon R9 M290X should be much (more or less 40%) faster with regards to AA than the GeForce GTX 465, and also will be able to handle higher resolutions better. (explain)

Radeon R9 M290X		27200 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 7776 (40%)

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 maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per 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 video card will be at 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 card could 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 sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.