Geforce GTX 780 vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which comes with core speeds of 800 MHz on the GPU, and 1250 MHz on the 1536 MB of GDDR5 memory. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

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 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 will be 20% quicker than the Radeon HD 7950 in general, because of its higher data rate. (explain)

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

Texel Rate

The Geforce GTX 780 will be a lot (about 85%) more effective 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

The Geforce GTX 780 should be a lot (about 62%) better at anti-aliasing than the Radeon HD 7950, and should be capable of handling higher resolutions better. (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 largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.