Geforce GTX 670 vs Radeon HD 7870

Intro

Compare those specifications to the Radeon HD 7870, which comes with GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 Texture Address Units, and 32 ROPs.

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 670		7351 points
Radeon HD 7870		6230 points
	Difference: 1121 (18%)

Ethereum Mining Hash Rate

Radeon HD 7870		16 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 3 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon HD 7870		175 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

The Geforce GTX 670, in theory, should perform quite a bit faster than the Radeon HD 7870 in general. (explain)

Geforce GTX 670		192000 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 38400 (25%)

Texel Rate

The Geforce GTX 670 is much (more or less 28%) faster with regards to texture filtering than the Radeon HD 7870. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 22480 (28%)

Pixel Rate

The Radeon HD 7870 will be a bit (approximately 9%) faster with regards to anti-aliasing than the Geforce GTX 670, and will be able to handle higher resolutions while still performing well. (explain)

Radeon HD 7870		32000 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 2720 (9%)

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 data (in units of 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 its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the 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 clock speed. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.