GeForce GTX 650 Ti vs Radeon HD 6990

Intro

Compare those specs to the Radeon HD 6990, which makes use of a 40 nm design. AMD has set the core frequency at 830 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this specific card. It features 1536 SPUs as well as 96 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 6990		5820 points
GeForce GTX 650 Ti		3434 points
	Difference: 2386 (69%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
GeForce GTX 650 Ti		10 Mh/s
	Difference: 14 (140%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
Radeon HD 6990		375 Watts
	Difference: 265 Watts (241%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6990 should perform quite a bit faster than the GeForce GTX 650 Ti in general. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 233600 (270%)

Texel Rate

The Radeon HD 6990 is a lot (more or less 168%) better at AF than the GeForce GTX 650 Ti. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 99968 (168%)

Pixel Rate

The Radeon HD 6990 should be much (more or less 258%) more effective at anti-aliasing than the GeForce GTX 650 Ti, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6990		53120 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 38272 (258%)

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 maximum amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.