GeForce GTX 950 vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which features core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 950		90 Watts
	Difference: 29 Watts (48%)

Memory Bandwidth

Performance-wise, the GeForce GTX 950 should theoretically be much better than the Radeon HD 5670 overall. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 41728 (65%)

Texel Rate

The GeForce GTX 950 is quite a bit (approximately 217%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 33652 (217%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 950 is a better choice, by a large margin. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 26568 (429%)

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 maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video 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 could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.