Geforce GTX 680 vs Radeon HD 7850

Intro

Compare those specifications to the Radeon HD 7850, which makes use of a 28 nm design. AMD has clocked the core frequency at 860 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this card. It features 1024 SPUs along with 64 TAUs 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 680		7650 points
Radeon HD 7850		5200 points
	Difference: 2450 (47%)

Ethereum Mining Hash Rate

Geforce GTX 680		16 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 3 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Geforce GTX 680		195 Watts
	Difference: 65 Watts (50%)

Memory Bandwidth

The Geforce GTX 680 should theoretically be much faster than the Radeon HD 7850 overall. (explain)

Geforce GTX 680		192256 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 38656 (25%)

Texel Rate

The Geforce GTX 680 should be much (more or less 134%) better at texture filtering than the Radeon HD 7850. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 73728 (134%)

Pixel Rate

The Geforce GTX 680 is a little bit (more or less 17%) more effective at full screen anti-aliasing than the Radeon HD 7850, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 4672 (17%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.