Geforce GTX 770 vs Radeon HD 7870

Intro

Compare those specs to the Radeon HD 7870, which has core clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs 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 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

Theoretically speaking, the Geforce GTX 770 should be a lot faster than the Radeon HD 7870 overall. (explain)

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

Texel Rate

The Geforce GTX 770 is much (about 67%) better at texture 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 should be a little bit (more or less 5%) more effective at full screen anti-aliasing than the Radeon HD 7870, and also should be capable of handling higher 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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 processed per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs 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 output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.