Geforce GTX 780 vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which has a GPU core clock speed of 925 MHz, and 3072 MB of GDDR5 memory running at 1375 MHz through a 384-bit bus. It also is made up of 2048 Stream Processors, 128 Texture Address Units, 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 780		10082 points
Radeon HD 7970		8225 points
	Difference: 1857 (23%)

Grand Theft Auto V | 1920x1080 | Very High

Geforce GTX 780		48 FPS
Radeon HD 7970		37 FPS
	Difference: 11 (30%)

Ethereum Mining Hash Rate

Radeon HD 7970		21 Mh/s
Geforce GTX 780		20 Mh/s
	Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the Geforce GTX 780 should in theory be just a bit better than the Radeon HD 7970 in general. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 24384 (9%)

Texel Rate

The Geforce GTX 780 should be a lot (more or less 40%) faster with regards to anisotropic filtering than the Radeon HD 7970. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 47296 (40%)

Pixel Rate

The Geforce GTX 780 is a lot (about 40%) faster with regards to full screen anti-aliasing than the Radeon HD 7970, and also capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 11824 (40%)

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 transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.