GeForce GTX 750 vs Radeon R9 390 8G

Intro

Compare that to the Radeon R9 390 8G, which features a GPU core clock speed of 1000 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also is made up of 2560 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 390 8G		12733 points
GeForce GTX 750		3958 points
	Difference: 8775 (222%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon R9 390 8G		275 Watts
	Difference: 220 Watts (400%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 390 8G should be quite a bit faster than the GeForce GTX 750 in general. (explain)

Radeon R9 390 8G		384000 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 304000 (380%)

Texel Rate

The Radeon R9 390 8G is quite a bit (more or less 390%) better at anisotropic filtering than the GeForce GTX 750. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 127360 (390%)

Pixel Rate

The Radeon R9 390 8G is a lot (about 292%) more effective at AA than the GeForce GTX 750, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 47680 (292%)

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 (in units of megabytes per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.