GeForce GTX 750 vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which has GPU core speed of 1050 MHz, and 8192 MB of GDDR5 RAM running at 1500 MHz through a 512-bit bus. It also is made up of 2816 Stream Processors, 176 Texture Address Units, and 64 ROPs.

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 390X 8G		13555 points
GeForce GTX 750		3958 points
	Difference: 9597 (242%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the Radeon R9 390X 8G should in theory be a lot superior to the GeForce GTX 750 in general. (explain)

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

Texel Rate

The Radeon R9 390X 8G will be quite a bit (approximately 466%) better at texture filtering than the GeForce GTX 750. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 152160 (466%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 390X 8G is superior to the GeForce GTX 750, and very much so. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 50880 (312%)

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 maximum amount of information (counted in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number 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 amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.