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Radeon HD 4790 vs Radeon R7 370 4G

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 card. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Compare all of that to the Radeon R7 370 4G, which comes with core clock speeds of 975 MHz on the GPU, and 1400 MHz on the 4096 MB of GDDR5 RAM. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R7 370 4G should in theory perform quite a bit faster than the Radeon HD 4790 in general. (explain)

Radeon R7 370 4G 179200 MB/sec
Radeon HD 4790 102400 MB/sec
Difference: 76800 (75%)

Texel Rate

The Radeon R7 370 4G will be a lot (about 225%) better at anisotropic filtering than the Radeon HD 4790. (explain)

Radeon R7 370 4G 62400 Mtexels/sec
Radeon HD 4790 19200 Mtexels/sec
Difference: 43200 (225%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R7 370 4G is a better choice, and very much so. (explain)

Radeon R7 370 4G 31200 Mpixels/sec
Radeon HD 4790 9600 Mpixels/sec
Difference: 21600 (225%)

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 370 4G

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 370 4G
Manufacturer AMD AMD
Year 2009 June 2015
Code Name RV790 Trinidad
Memory 512 MB 4096 MB
Core Speed 600 MHz 975 MHz
Memory Speed 3200 MHz 5600 MHz
Power (Max TDP) (Unknown) watts 110 watts
Bandwidth 102400 MB/sec 179200 MB/sec
Texel Rate 19200 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 640(128x5) 1024
Texture Mapping Units 32 64
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-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 max amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 4790

Amazon.com

Check prices at:

Radeon R7 370 4G

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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