GeForce GTX 950 vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which has a clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It features 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 950 will be 65% quicker than the Radeon HD 5670 overall, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 950 will be quite a bit (about 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

The GeForce GTX 950 should be a lot (approximately 429%) better at FSAA than the Radeon HD 5670, and able to handle higher resolutions without slowing down too much. (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 data (measured in 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. If the card has DDR type RAM, it must be multiplied by 2 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 AA, HDR and high resolutions.

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