GeForce GTX 960 vs Radeon HD 6770

Intro

Compare those specs to the Radeon HD 6770, which comes with a GPU core clock speed of 900 MHz, and 512 MB of GDDR5 memory set to run at 1050 MHz through a 128-bit bus. It also is made up of 800 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 960		7627 points
Radeon HD 6770		1520 points
	Difference: 6107 (402%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
GeForce GTX 960		120 Watts
	Difference: 12 Watts (11%)

Memory Bandwidth

The GeForce GTX 960, in theory, should perform a lot faster than the Radeon HD 6770 in general. (explain)

GeForce GTX 960		112000 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 44800 (67%)

Texel Rate

The GeForce GTX 960 is a lot (more or less 100%) faster with regards to anisotropic filtering than the Radeon HD 6770. (explain)

GeForce GTX 960		72128 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 36128 (100%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 960 is a better choice, and very much so. (explain)

GeForce GTX 960		36064 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 21664 (150%)

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 max amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels 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 amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.