GeForce GTX 465 vs Radeon R9 M290X

Intro

Compare all that to the Radeon R9 M290X, which has a GPU core clock speed of 850 MHz, and 4096 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is comprised of 1280 SPUs, 80 TAUs, and 32 ROPs.

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

The Radeon R9 M290X should in theory be a lot faster 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 should be a lot (more or less 155%) better at anisotropic filtering than the GeForce GTX 465. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M290X is the winner, and very much so. (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 max amount of data (in units of MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core clock 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.