GeForce GTX 650 vs Geforce GTX 770

Intro

Compare all that to the Geforce GTX 770, which uses a 28 nm design. nVidia has set the core speed at 1046 MHz. The GDDR5 memory is set to run at a frequency of 1753 MHz on this specific model. It features 1536 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

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 770		7854 points
GeForce GTX 650		2263 points
	Difference: 5591 (247%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Geforce GTX 770		230 Watts
	Difference: 166 Watts (259%)

Memory Bandwidth

In theory, the Geforce GTX 770 should be 180% quicker than the GeForce GTX 650 in general, because of its greater bandwidth. (explain)

Geforce GTX 770		224384 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 144384 (180%)

Texel Rate

The Geforce GTX 770 should be a lot (about 295%) more effective at texture filtering than the GeForce GTX 650. (explain)

Geforce GTX 770		133888 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 100032 (295%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 770 is the winner, by a large margin. (explain)

Geforce GTX 770		33472 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 16544 (98%)

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 data (counted in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.