Geforce GTX 680 vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which makes use of a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM is set to run at a speed of 1400 MHz on this card. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator 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

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

In theory, the Geforce GTX 680 should be 7% faster than the Radeon R9 270 overall, because of its higher data rate. (explain)

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

Texel Rate

The Geforce GTX 680 will be quite a bit (about 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 using lots of anti-aliasing is important to you, then the Geforce GTX 680 is superior to the Radeon R9 270, though not by far. (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 information (in units of MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be 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 higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.