Geforce GTX 780 vs Radeon HD 7950

Intro

Compare those specs to the Radeon HD 7950, which uses a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory is set to run at a speed of 1250 MHz on this specific card. It features 1792 SPUs along with 112 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 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

In theory, the Geforce GTX 780 should perform a small bit faster than the Radeon HD 7950 in general. (explain)

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

Texel Rate

The Geforce GTX 780 is much (about 85%) better at anisotropic filtering 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 a high screen resolution is important to you, then the Geforce GTX 780 is a better choice, by a large margin. (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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR 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 calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.