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Radeon HD 4790 vs Radeon R7 360

Intro

The Radeon HD 4790 comes with a clock speed of 600 MHz and a GDDR5 memory speed of 800 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Compare those specs to the Radeon R7 360, which uses a 28 nm design. AMD has clocked the core frequency at 1050 MHz. The GDDR5 memory is set to run at a frequency of 1625 MHz on this model. It features 768 SPUs as well as 48 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R7 360 should be just a bit faster than the Radeon HD 4790 overall. (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%) faster with regards to anisotropic 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 running with a high screen resolution is important to you, then the Radeon R7 360 is superior to the Radeon HD 4790, 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: Bandwidth is the maximum amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 per second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 max 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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