Geforce GTX 690 vs Radeon HD 7850

Intro

Compare that to the Radeon HD 7850, which has a core clock frequency of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It features 1024 SPUs, 64 TAUs, and 32 Raster Operation 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 690		13111 points
Radeon HD 7850		5200 points
	Difference: 7911 (152%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Geforce GTX 690		300 Watts
	Difference: 170 Watts (131%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should in theory be much better than the Radeon HD 7850 in general. (explain)

Geforce GTX 690		384512 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 230912 (150%)

Texel Rate

The Geforce GTX 690 should be much (approximately 326%) more effective at AF than the Radeon HD 7850. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 179200 (326%)

Pixel Rate

The Geforce GTX 690 should be much (approximately 113%) more effective at anti-aliasing than the Radeon HD 7850, and also should be able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 31040 (113%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.