Geforce GTX 770 vs Radeon R9 390 8G

Intro

Compare that to the Radeon R9 390 8G, which has GPU clock speed of 1000 MHz, and 8192 MB of GDDR5 memory running at 1500 MHz through a 512-bit bus. It also features 2560 SPUs, 160 TAUs, and 64 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

Radeon R9 390 8G		12733 points
Geforce GTX 770		7854 points
	Difference: 4879 (62%)

Ethereum Mining Hash Rate

Radeon R9 390 8G		28 Mh/s
Geforce GTX 770		14 Mh/s
	Difference: 14 (100%)

Zcash Mining Hash Rate

Radeon R9 390 8G		326 Sol/s
Geforce GTX 770		70 Sol/s
	Difference: 256 (366%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
Radeon R9 390 8G		275 Watts
	Difference: 45 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 390 8G will be 71% quicker than the Geforce GTX 770 overall, due to its higher data rate. (explain)

Radeon R9 390 8G		384000 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 159616 (71%)

Texel Rate

The Radeon R9 390 8G will be a little bit (about 20%) better at texture filtering than the Geforce GTX 770. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 26112 (20%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 390 8G is the winner, and very much so. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 30528 (91%)

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 largest amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the 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 number of pixels that the graphics chip 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 ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.