Geforce GTX 680 vs Radeon R9 270

Intro

Compare all of that to the Radeon R9 270, which comes with clock 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

Performance-wise, the Geforce GTX 680 should in theory be just a bit better 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 is quite a bit (more or less 79%) more effective 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

If running with a high screen resolution is important to you, then the Geforce GTX 680 is superior to the Radeon R9 270, but it probably won't make a huge difference. (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 largest amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.