GeForce GTX 750 Ti vs Radeon HD 7990

Intro

Compare all that to the Radeon HD 7990, which uses a 28 nm design. AMD has clocked the core frequency at 950 MHz. The GDDR5 memory runs at a frequency of 1500 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 32 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 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 overall. (explain)

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

Texel Rate

The Radeon HD 7990 should be a lot (about 496%) better at anisotropic filtering 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

If running with a high screen resolution is important to you, then the Radeon HD 7990 is superior to the GeForce GTX 750 Ti, by a large margin. (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 information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the 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 number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.