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GeForce GTX 480 vs Radeon R9 270X

Intro

The GeForce GTX 480 uses a 40 nm design. nVidia has clocked the core speed at 700 MHz. The GDDR5 RAM works at a frequency of 924 MHz on this card. It features 480 SPUs as well as 60 TAUs and 48 Rasterization Operator Units.

Compare that to the Radeon R9 270X, which has core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator 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 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

In theory, the Radeon R9 270X should perform a little bit faster than the GeForce GTX 480 in general. (explain)

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

Texel Rate

The Radeon R9 270X will be a lot (about 90%) more effective 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 is a little bit (about 5%) faster with regards to anti-aliasing than the Radeon R9 270X, and also able to handle higher screen 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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

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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