GeForce GTX 950 vs Radeon HD 5670

Intro

Compare that to the Radeon HD 5670, which has a core clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is made up of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

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

In theory, the GeForce GTX 950 is 65% quicker than the Radeon HD 5670 overall, because of its greater data rate. (explain)

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

Texel Rate

The GeForce GTX 950 should be a lot (approximately 217%) better at 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 will be a lot (about 429%) faster with regards to AA than the Radeon HD 5670, and capable of handling higher resolutions without losing too much performance. (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 largest amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 video 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 ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.