GeForce RTX 2080 vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which uses a 28 nm design. nVidia has clocked the core speed at 863 MHz. The GDDR5 RAM is set to run at a speed of 1502 MHz on this specific card. It features 2304 SPUs along with 192 Texture Address Units and 48 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 RTX 2080		26155 points
Geforce GTX 780		10082 points
	Difference: 16073 (159%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080		215 Watts
Geforce GTX 780		250 Watts
	Difference: 35 Watts (16%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 will be 59% quicker than the Geforce GTX 780 overall, because of its greater data rate. (explain)

GeForce RTX 2080		458752 MB/sec
Geforce GTX 780		288384 MB/sec
	Difference: 170368 (59%)

Texel Rate

The GeForce RTX 2080 will be quite a bit (more or less 68%) faster with regards to texture filtering than the Geforce GTX 780. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 113064 (68%)

Pixel Rate

The GeForce RTX 2080 will be a lot (about 134%) better at full screen anti-aliasing than the Geforce GTX 780, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 55536 (134%)

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 MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 most pixels the graphics card could possibly write 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 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.