GeForce GTX 950 vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which comes with GPU core speed of 850 MHz, and 1024 MB of GDDR5 RAM set to run at 1200 MHz through a 128-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950		90 Watts
Radeon HD 5770		108 Watts
	Difference: 18 Watts (20%)

Memory Bandwidth

The GeForce GTX 950 should in theory perform quite a bit faster than the Radeon HD 5770 in general. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 28928 (38%)

Texel Rate

The GeForce GTX 950 will be a lot (more or less 45%) better at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 15152 (45%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 950 is a better choice, by far. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 19168 (141%)

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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.