GeForce GTX 260 Core 216 vs Geforce GTX 770

Intro

Compare all that to the Geforce GTX 770, which features clock speeds of 1046 MHz on the GPU, and 1753 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 Core 216		202 Watts
Geforce GTX 770		230 Watts
	Difference: 28 Watts (14%)

Memory Bandwidth

In theory, the Geforce GTX 770 should be 101% quicker than the GeForce GTX 260 Core 216 overall, due to its greater bandwidth. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 112496 (101%)

Texel Rate

The Geforce GTX 770 is quite a bit (about 223%) more effective at texture filtering than the GeForce GTX 260 Core 216. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 92416 (223%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 770 is a better choice, and very much so. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 17344 (108%)

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 largest amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the 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 that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.