GeForce RTX 3060 vs Radeon HD 6990

Intro

Compare those specs to the Radeon HD 6990, which has a core clock speed of 830 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It features 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3060		170 Watts
Radeon HD 6990		375 Watts
	Difference: 205 Watts (121%)

Memory Bandwidth

The GeForce RTX 3060 should theoretically perform a little bit faster than the Radeon HD 6990 in general. (explain)

GeForce RTX 3060		368640 MB/sec
Radeon HD 6990		320000 MB/sec
	Difference: 48640 (15%)

Texel Rate

The Radeon HD 6990 is a little bit (approximately 8%) more effective at anisotropic filtering than the GeForce RTX 3060. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce RTX 3060		147840 Mtexels/sec
	Difference: 11520 (8%)

Pixel Rate

The GeForce RTX 3060 should be a little bit (approximately 19%) better at full screen anti-aliasing than the Radeon HD 6990, and will be able to handle higher resolutions more effectively. (explain)

GeForce RTX 3060		63360 Mpixels/sec
Radeon HD 6990		53120 Mpixels/sec
	Difference: 10240 (19%)

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 max amount of data (measured in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 get to the max fill rate.