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GeForce GTX 480 vs Radeon R9 270X

Intro

The GeForce GTX 480 comes with a GPU clock speed of 700 MHz, and the 1536 MB of GDDR5 RAM runs at 924 MHz through a 384-bit bus. It also features 480 Stream Processors, 60 TAUs, and 48 ROPs.

Compare all that to the Radeon R9 270X, which makes use of a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a frequency of 1400 MHz on this particular model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

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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 270X 6590 points
GeForce GTX 480 3650 points
Difference: 2940 (81%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
GeForce GTX 480 250 Watts
Difference: 70 Watts (39%)

Memory Bandwidth

The Radeon R9 270X should in theory perform a bit faster than the GeForce GTX 480 overall. (explain)

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

Texel Rate

The Radeon R9 270X is a lot (more or less 90%) better at texture filtering than the GeForce GTX 480. (explain)

Radeon R9 270X 80000 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 38000 (90%)

Pixel Rate

The GeForce GTX 480 should be a bit (about 5%) better at anti-aliasing than the Radeon R9 270X, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 1600 (5%)

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

Radeon R9 270X

Amazon.com

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 270X
Manufacturer nVidia AMD
Year March 2010 October 2013
Code Name GF100 Curacao XT
Memory 1536 MB 2048 MB
Core Speed 700 MHz 1000 MHz
Memory Speed 3696 MHz 5600 MHz
Power (Max TDP) 250 watts 180 watts
Bandwidth 177408 MB/sec 179200 MB/sec
Texel Rate 42000 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 32000 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 maximum amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Radeon R9 270X

Amazon.com

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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