Geforce GTX 680 vs Radeon HD 7850

Intro

Compare those specs to the Radeon HD 7850, which has a core clock speed of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

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 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

As far as performance goes, the Geforce GTX 680 should theoretically be quite a bit better than the Radeon HD 7850 in general. (explain)

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

Texel Rate

The Geforce GTX 680 is much (about 134%) faster with regards to anisotropic 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 should be a bit (about 17%) better at FSAA than the Radeon HD 7850, and should be able to handle 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 maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on many 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.