GeForce GTX 295 vs Radeon R9 270X

Intro

Compare all that to the Radeon R9 270X, which makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory works at a speed of 1400 MHz on this particular card. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
GeForce GTX 295		289 Watts
	Difference: 109 Watts (61%)

Memory Bandwidth

The GeForce GTX 295 should theoretically perform quite a bit faster than the Radeon R9 270X in general. (explain)

GeForce GTX 295		223776 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 44576 (25%)

Texel Rate

The GeForce GTX 295 should be a little bit (more or less 15%) more effective at AF than the Radeon R9 270X. (explain)

GeForce GTX 295		92160 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 12160 (15%)

Pixel Rate

The GeForce GTX 295 should be a bit (more or less 1%) more effective at FSAA than the Radeon R9 270X, and also will be able to handle higher resolutions better. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 256 (1%)

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 (measured in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated 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 outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few 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.