Geforce GTX 670 vs Radeon R9 390X 8G

Intro

Compare those specifications to the Radeon R9 390X 8G, which features a core clock speed of 1050 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 512-bit memory bus, and makes use of a 28 nm design. It is made up of 2816 SPUs, 176 Texture Address Units, and 64 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

Radeon R9 390X 8G		13555 points
Geforce GTX 670		7351 points
	Difference: 6204 (84%)

Ethereum Mining Hash Rate

Radeon R9 390X 8G		32 Mh/s
Geforce GTX 670		13 Mh/s
	Difference: 19 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 105 Watts (62%)

Memory Bandwidth

The Radeon R9 390X 8G should in theory be much faster than the Geforce GTX 670 overall. (explain)

Radeon R9 390X 8G		384000 MB/sec
Geforce GTX 670		192000 MB/sec
	Difference: 192000 (100%)

Texel Rate

The Radeon R9 390X 8G will be quite a bit (about 80%) better at anisotropic filtering than the Geforce GTX 670. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Geforce GTX 670		102480 Mtexels/sec
	Difference: 82320 (80%)

Pixel Rate

The Radeon R9 390X 8G will be quite a bit (more or less 130%) faster with regards to full screen anti-aliasing than the Geforce GTX 670, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Geforce GTX 670		29280 Mpixels/sec
	Difference: 37920 (130%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 can be processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.