Geforce GTX 680 vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which has core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs along with 80 Texture Address Units and 32 ROPs.

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 680		7650 points
Radeon R9 270		5943 points
	Difference: 1707 (29%)

Ethereum Mining Hash Rate

Geforce GTX 680		16 Mh/s
Radeon R9 270		15 Mh/s
	Difference: 1 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Geforce GTX 680		195 Watts
	Difference: 45 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 should be just a bit faster than the Radeon R9 270 in general. (explain)

Geforce GTX 680		192256 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 13056 (7%)

Texel Rate

The Geforce GTX 680 should be much (about 79%) better at texture filtering than the Radeon R9 270. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 56768 (79%)

Pixel Rate

The Geforce GTX 680 will be a bit (approximately 12%) more effective at FSAA than the Radeon R9 270, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 3392 (12%)

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 max amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.