Geforce GTX 780 vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which uses a 28 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM is set to run at a frequency of 1250 MHz on this model. It features 1792 SPUs as well as 112 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 780		10082 points
Radeon HD 7950		7731 points
	Difference: 2351 (30%)

Ethereum Mining Hash Rate

Radeon HD 7950		21 Mh/s
Geforce GTX 780		20 Mh/s
	Difference: 1 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950		200 Watts
Geforce GTX 780		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 780 should be a bit faster than the Radeon HD 7950 overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon HD 7950		240000 MB/sec
	Difference: 48384 (20%)

Texel Rate

The Geforce GTX 780 will be quite a bit (approximately 85%) better at AF than the Radeon HD 7950. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 76096 (85%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 780 is the winner, by far. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 15824 (62%)

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 max amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, 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 most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core 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 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 reach the max fill rate.