GeForce GTX 950 vs Radeon HD 6990

Intro

Compare those specs to the Radeon HD 6990, which features a GPU core clock speed of 830 MHz, and 2048 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 Texture Address Units, and 32 Raster Operation 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 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

As far as performance goes, the Radeon HD 6990 should in theory be much better than the GeForce GTX 950 overall. (explain)

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

Texel Rate

The Radeon HD 6990 should be quite a bit (approximately 224%) faster with regards to texture filtering 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 will be a lot (more or less 62%) more effective at full screen anti-aliasing than the GeForce GTX 950, and also will be able to handle higher screen resolutions more effectively. (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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.