GeForce GTX 650 vs Geforce GTX 770

Intro

Compare all of that to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has set the core frequency at 1046 MHz. The GDDR5 memory runs at a frequency of 1753 MHz on this specific card. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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

Performance-wise, the Geforce GTX 770 should in theory be a lot better than the GeForce GTX 650 overall. (explain)

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

Texel Rate

The Geforce GTX 770 will be much (approximately 295%) better 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

The Geforce GTX 770 should be a lot (about 98%) better at full screen anti-aliasing than the GeForce GTX 650, and also should be capable of handling higher resolutions more effectively. (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: Bandwidth is the largest amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core 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 rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.