GeForce GTX 950 vs Radeon HD 6770 1GB

Intro

Compare that to the Radeon HD 6770 1GB, which comes with a GPU core clock speed of 900 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is comprised of 800 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
Radeon HD 6770 1GB		108 Watts
	Difference: 18 Watts (20%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 950 should in theory be much superior to the Radeon HD 6770 1GB in general. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 38528 (57%)

Texel Rate

The GeForce GTX 950 will be much (approximately 37%) better at AF than the Radeon HD 6770 1GB. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 13152 (37%)

Pixel Rate

The GeForce GTX 950 is much (approximately 128%) better at FSAA than the Radeon HD 6770 1GB, and able to handle higher resolutions better. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 18368 (128%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.