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Radeon HD 5870 vs Radeon R7 370 4G

Intro

The Radeon HD 5870 has a core clock frequency of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is made up of 1600(320x5) SPUs, 80 TAUs, and 32 Raster Operation Units.

Compare those specifications to the Radeon R7 370 4G, which comes with a GPU core clock speed of 975 MHz, and 4096 MB of GDDR5 RAM set to run at 1400 MHz through a 256-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G 110 Watts
Radeon HD 5870 188 Watts
Difference: 78 Watts (71%)

Memory Bandwidth

Performance-wise, the Radeon R7 370 4G should in theory be just a bit superior to the Radeon HD 5870 in general. (explain)

Radeon R7 370 4G 179200 MB/sec
Radeon HD 5870 153600 MB/sec
Difference: 25600 (17%)

Texel Rate

The Radeon HD 5870 should be a small bit (more or less 9%) faster with regards to texture filtering than the Radeon R7 370 4G. (explain)

Radeon HD 5870 68000 Mtexels/sec
Radeon R7 370 4G 62400 Mtexels/sec
Difference: 5600 (9%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R7 370 4G is the winner, but it probably won't make a huge difference. (explain)

Radeon R7 370 4G 31200 Mpixels/sec
Radeon HD 5870 27200 Mpixels/sec
Difference: 4000 (15%)

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 5870

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 5870 Radeon R7 370 4G
Manufacturer AMD AMD
Year September 23, 2009 June 2015
Code Name Cypress XT Trinidad
Memory 1024 MB 4096 MB
Core Speed 850 MHz 975 MHz
Memory Speed 4800 MHz 5600 MHz
Power (Max TDP) 188 watts 110 watts
Bandwidth 153600 MB/sec 179200 MB/sec
Texel Rate 68000 Mtexels/sec 62400 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 31200 Mpixels/sec
Unified Shaders 1600(320x5) 1024
Texture Mapping Units 80 64
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 2154 million 2080 million
Bus PCIe 2.1 x16 PCIe 3.0 ×16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 3.2 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount 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 worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 5870

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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