Geforce GTX 690 vs Radeon HD 7790

Intro

Compare all that to the Radeon HD 7790, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM works at a speed of 1500 MHz on this card. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

Geforce GTX 690		13111 points
Radeon HD 7790		4330 points
	Difference: 8781 (203%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Geforce GTX 690		300 Watts
	Difference: 215 Watts (253%)

Memory Bandwidth

Performance-wise, the Geforce GTX 690 should in theory be much superior to the Radeon HD 7790 overall. (explain)

Geforce GTX 690		384512 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 288512 (301%)

Texel Rate

The Geforce GTX 690 should be quite a bit (approximately 318%) faster with regards to AF than the Radeon HD 7790. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 178240 (318%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 690 is superior to the Radeon HD 7790, by far. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 42560 (266%)

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 (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 speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.