Geforce GTX 780 vs Radeon HD 7970

Intro

Compare all that to the Radeon HD 7970, which makes use of a 28 nm design. AMD has set the core speed at 925 MHz. The GDDR5 RAM runs at a speed of 1375 MHz on this specific card. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

Display Graphs

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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

Theoretically speaking, the Geforce GTX 780 will be 9% quicker than the Radeon HD 7970 in general, because of its higher data rate. (explain)

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

Texel Rate

The Geforce GTX 780 should be quite a bit (approximately 40%) better at AF 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 will be quite a bit (approximately 40%) more effective at FSAA than the Radeon HD 7970, and capable of handling higher screen resolutions while still performing well. (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 max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a 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 drawing the pixels (image) on the screen. The actual pixel 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.