Geforce GTX 770 vs Radeon HD 7870

Intro

Compare that to the Radeon HD 7870, which uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this card. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator 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 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 is 46% quicker than the Radeon HD 7870 overall, due to its higher data rate. (explain)

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

Texel Rate

The Geforce GTX 770 should be a lot (approximately 67%) more effective at AF 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 will be just a bit (more or less 5%) better at full screen anti-aliasing than the Radeon HD 7870, and will be capable of handling higher resolutions without losing too much performance. (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: Memory bandwidth is the maximum amount of information (counted in MB 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 its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 are processed in one second. This is worked out by multiplying the total amount of texture units of the card 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can 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 clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.