Geforce GTX 770 vs Radeon R9 M395X

Intro

Compare that to the Radeon R9 M395X, which has core speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
Geforce GTX 770		230 Watts
	Difference: 105 Watts (84%)

Memory Bandwidth

In theory, the Geforce GTX 770 should be 40% quicker than the Radeon R9 M395X in general, because of its greater data rate. (explain)

Geforce GTX 770		224384 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 64384 (40%)

Texel Rate

The Geforce GTX 770 is quite a bit (approximately 45%) more effective at AF than the Radeon R9 M395X. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 41344 (45%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 770 is the winner, and very much so. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 10336 (45%)

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: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.