GeForce GTX 750 Ti vs Radeon HD 7990

Intro

Compare those specs to the Radeon HD 7990, which has a clock speed of 950 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It is made up of 2048 SPUs, 128 TAUs, and 32 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 HD 7990		15520 points
GeForce GTX 750 Ti		4562 points
	Difference: 10958 (240%)

Zcash Mining Hash Rate

Radeon HD 7990		513 Sol/s
GeForce GTX 750 Ti		72 Sol/s
	Difference: 441 (613%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
Radeon HD 7990		375 Watts
	Difference: 315 Watts (525%)

Memory Bandwidth

The Radeon HD 7990 should in theory be quite a bit faster than the GeForce GTX 750 Ti in general. (explain)

Radeon HD 7990		576000 MB/sec
GeForce GTX 750 Ti		86400 MB/sec
	Difference: 489600 (567%)

Texel Rate

The Radeon HD 7990 is quite a bit (about 496%) more effective at AF than the GeForce GTX 750 Ti. (explain)

Radeon HD 7990		243200 Mtexels/sec
GeForce GTX 750 Ti		40800 Mtexels/sec
	Difference: 202400 (496%)

Pixel Rate

The Radeon HD 7990 is much (about 273%) more effective at AA than the GeForce GTX 750 Ti, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 7990		60800 Mpixels/sec
GeForce GTX 750 Ti		16320 Mpixels/sec
	Difference: 44480 (273%)

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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.