GeForce GTX 950 vs Radeon HD 6990

Intro

Compare all of that to the Radeon HD 6990, which comes with core speeds of 830 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 96 Texture Address Units and 32 Rasterization Operator 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

GeForce GTX 950		6536 points
Radeon HD 6990		5820 points
	Difference: 716 (12%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
GeForce GTX 950		10 Mh/s
	Difference: 14 (140%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
Radeon HD 6990		375 Watts
	Difference: 285 Watts (317%)

Memory Bandwidth

Performance-wise, the Radeon HD 6990 should theoretically be a lot superior to the GeForce GTX 950 in general. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 950		105728 MB/sec
	Difference: 214272 (203%)

Texel Rate

The Radeon HD 6990 should be a lot (approximately 224%) better at AF than the GeForce GTX 950. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce GTX 950		49152 Mtexels/sec
	Difference: 110208 (224%)

Pixel Rate

The Radeon HD 6990 is a lot (about 62%) faster with regards to AA than the GeForce GTX 950, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 6990		53120 Mpixels/sec
GeForce GTX 950		32768 Mpixels/sec
	Difference: 20352 (62%)

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 transported past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.