Geforce GTX 770 vs Radeon HD 7870

Intro

Compare all that to the Radeon HD 7870, which comes with a core clock speed of 1000 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, 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 770		7854 points
Radeon HD 7870		6230 points
	Difference: 1624 (26%)

Ethereum Mining Hash Rate

Radeon HD 7870		16 Mh/s
Geforce GTX 770		14 Mh/s
	Difference: 2 (14%)

Zcash Mining Hash Rate

Radeon HD 7870		172 Sol/s
Geforce GTX 770		70 Sol/s
	Difference: 102 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870		175 Watts
Geforce GTX 770		230 Watts
	Difference: 55 Watts (31%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 770 should theoretically be a lot better than the Radeon HD 7870 in general. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 70784 (46%)

Texel Rate

The Geforce GTX 770 will be quite a bit (more or less 67%) faster with regards to anisotropic filtering than the Radeon HD 7870. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 53888 (67%)

Pixel Rate

The Geforce GTX 770 is a small bit (more or less 5%) better at full screen anti-aliasing than the Radeon HD 7870, and also should be able to handle higher screen resolutions while still performing well. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 7870		32000 Mpixels/sec
	Difference: 1472 (5%)

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 (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.