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GeForce GTX 480 vs Radeon R9 270

Intro

The GeForce GTX 480 has a core clock speed of 700 MHz and a GDDR5 memory frequency of 924 MHz. It also uses a 384-bit memory bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 60 TAUs, and 48 ROPs.

Compare all of that to the Radeon R9 270, which has a clock speed of 900 MHz and a GDDR5 memory frequency of 1400 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

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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 270 5943 points
GeForce GTX 480 3650 points
Difference: 2293 (63%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270 150 Watts
GeForce GTX 480 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 270 should be just a bit faster than the GeForce GTX 480 in general. (explain)

Radeon R9 270 179200 MB/sec
GeForce GTX 480 177408 MB/sec
Difference: 1792 (1%)

Texel Rate

The Radeon R9 270 is a lot (more or less 71%) better at texture filtering than the GeForce GTX 480. (explain)

Radeon R9 270 72000 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 30000 (71%)

Pixel Rate

The GeForce GTX 480 is a little bit (about 17%) faster with regards to anti-aliasing than the Radeon R9 270, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon R9 270 28800 Mpixels/sec
Difference: 4800 (17%)

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

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon R9 270

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 480 Radeon R9 270
Manufacturer nVidia AMD
Year March 2010 November 2013
Code Name GF100 Curacao Pro
Memory 1536 MB 2048 MB
Core Speed 700 MHz 900 MHz
Memory Speed 3696 MHz 5600 MHz
Power (Max TDP) 250 watts 150 watts
Bandwidth 177408 MB/sec 179200 MB/sec
Texel Rate 42000 Mtexels/sec 72000 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 480 1280
Texture Mapping Units 60 80
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, 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 number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon R9 270

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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