GeForce GTX 960M vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which features GPU clock speed of 850 MHz, and 1024 MB of GDDR5 RAM set to run at 1200 MHz through a 128-bit bus. It also features 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon HD 5770		108 Watts
	Difference: 43 Watts (66%)

Memory Bandwidth

The Radeon HD 5770 should theoretically perform a small bit faster than the GeForce GTX 960M overall. (explain)

Radeon HD 5770		76800 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 12800 (20%)

Texel Rate

The GeForce GTX 960M will be a lot (approximately 29%) more effective at AF than the Radeon HD 5770. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 9840 (29%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 960M is superior to the Radeon HD 5770, and very much so. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 3936 (29%)

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 maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 number is worked out 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.