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GeForce GTX 260 vs Radeon RX 460


Intro

The GeForce GTX 260 has a core clock speed of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also uses a 448-bit bus, and uses a 65 nm design. It features 192 SPUs, 64 TAUs, and 28 ROPs.

Compare that to the Radeon RX 460, which makes use of a 14 nm design. AMD has clocked the core frequency at 1090 MHz. The GDDR5 RAM is set to run at a frequency of 1750 MHz on this specific card. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 75 Watts
GeForce GTX 260 182 Watts
Difference: 107 Watts (143%)

Memory Bandwidth

In theory, the Radeon RX 460 should be just a bit faster than the GeForce GTX 260 overall. (explain)

Radeon RX 460 112000 MB/sec
GeForce GTX 260 111888 MB/sec
Difference: 112 (0%)

Texel Rate

The Radeon RX 460 should be quite a bit (more or less 66%) faster with regards to texture filtering than the GeForce GTX 260. (explain)

Radeon RX 460 61040 Mtexels/sec
GeForce GTX 260 36864 Mtexels/sec
Difference: 24176 (66%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 460 is superior to the GeForce GTX 260, but only just. (explain)

Radeon RX 460 17440 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 1312 (8%)

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

GeForce GTX 260

Radeon RX 460

Specifications

Display Specifications

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Model GeForce GTX 260 Radeon RX 460
Manufacturer nVidia AMD
Year June 16, 2008 August 2016
Code Name G200 Polaris 11
Memory 896 MB 4096 MB
Core Speed 576 MHz 1090 MHz
Memory Speed 1998 MHz 7000 MHz
Power (Max TDP) 182 watts 75 watts
Bandwidth 111888 MB/sec 112000 MB/sec
Texel Rate 36864 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 192 896
Texture Mapping Units 64 56
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
Fab Process 65 nm 14 nm
Transistors 1400 million 3000 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics 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 amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

GeForce GTX 260

Radeon RX 460

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