GeForce GTX 295 vs Radeon R9 M395X

Intro

Compare all of that to the Radeon R9 M395X, which features a clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
GeForce GTX 295		289 Watts
	Difference: 164 Watts (131%)

Memory Bandwidth

Performance-wise, the GeForce GTX 295 should in theory be a lot superior to the Radeon R9 M395X in general. (explain)

GeForce GTX 295		223776 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 63776 (40%)

Texel Rate

The Radeon R9 M395X should be a small bit (more or less 0%) faster with regards to texture filtering than the GeForce GTX 295. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 295		92160 Mtexels/sec
	Difference: 384 (0%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 295 is a better choice, by far. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 9120 (39%)

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 max amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.