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GeForce GTX 750 vs Radeon R9 280X

Intro

The GeForce GTX 750 comes with a GPU clock speed of 1020 MHz, and the 1024 MB of GDDR5 RAM is set to run at 1250 MHz through a 128-bit bus. It also features 512 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

Compare that to the Radeon R9 280X, which makes use of a 28 nm design. AMD has set the core speed at 850 MHz. The GDDR5 memory is set to run at a speed of 1500 MHz on this particular card. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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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 280X		8886 points
GeForce GTX 750		3958 points
	Difference: 4928 (125%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon R9 280X		250 Watts
	Difference: 195 Watts (355%)

Memory Bandwidth

In theory, the Radeon R9 280X should perform much faster than the GeForce GTX 750 in general. (explain)

Radeon R9 280X		288000 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 208000 (260%)

Texel Rate

The Radeon R9 280X is quite a bit (about 233%) more effective at texture filtering than the GeForce GTX 750. (explain)

Radeon R9 280X		108800 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 76160 (233%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 280X is superior to the GeForce GTX 750, and very much so. (explain)

Radeon R9 280X		27200 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 10880 (67%)

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

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GeForce GTX 750

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Radeon R9 280X

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce GTX 750	Radeon R9 280X
Manufacturer	nVidia	AMD
Year	February 2014	October 2013
Code Name	GM107	Tahiti XTL
Memory	1024 MB	3072 MB
Core Speed	1020 MHz	850 MHz
Memory Speed	5000 MHz	6000 MHz
Power (Max TDP)	55 watts	250 watts
Bandwidth	80000 MB/sec	288000 MB/sec
Texel Rate	32640 Mtexels/sec	108800 Mtexels/sec
Pixel Rate	16320 Mpixels/sec	27200 Mpixels/sec
Unified Shaders	512	2048
Texture Mapping Units	32	128
Render Output Units	16	32
Bus Type	GDDR5	GDDR5
Bus Width	128-bit	384-bit
Fab Process	28 nm	28 nm
Transistors	1870 million	4313 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 11.0	DirectX 11.2
OpenGL Version	OpenGL 4.4	OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

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