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Radeon HD 4790 vs Radeon R7 360

Intro

The Radeon HD 4790 uses a 55 nm design. AMD has set the core speed at 600 MHz. The GDDR5 memory works at a frequency of 800 MHz on this particular card. It features 640(128x5) SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon R7 360, which makes use of a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 memory is set to run at a frequency of 1625 MHz on this specific model. It features 768 SPUs along with 48 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 360 should in theory be a little bit faster than the Radeon HD 4790 in general. (explain)

Radeon R7 360 104000 MB/sec
Radeon HD 4790 102400 MB/sec
Difference: 1600 (2%)

Texel Rate

The Radeon R7 360 should be quite a bit (about 163%) more effective at texture filtering than the Radeon HD 4790. (explain)

Radeon R7 360 50400 Mtexels/sec
Radeon HD 4790 19200 Mtexels/sec
Difference: 31200 (163%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R7 360 is a better choice, by a large margin. (explain)

Radeon R7 360 16800 Mpixels/sec
Radeon HD 4790 9600 Mpixels/sec
Difference: 7200 (75%)

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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Radeon HD 4790

Amazon.com

Check prices at:

Radeon R7 360

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 Radeon HD 4790 Radeon R7 360
Manufacturer AMD AMD
Year 2009 June 2015
Code Name RV790 Tobago
Memory 512 MB 2048 MB
Core Speed 600 MHz 1050 MHz
Memory Speed 3200 MHz 6500 MHz
Power (Max TDP) (Unknown) watts 100 watts
Bandwidth 102400 MB/sec 104000 MB/sec
Texel Rate 19200 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 16800 Mpixels/sec
Unified Shaders 640(128x5) 768
Texture Mapping Units 32 48
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 959 million 2080 million
Bus PCIe 2.0 x16 PCIe 3.0 ×16
DirectX Version DirectX 10.1 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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Radeon HD 4790

Amazon.com

Check prices at:

Radeon R7 360

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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