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Radeon HD 4850 512MB vs Radeon R9 M370X

Intro

The Radeon HD 4850 512MB makes use of a 55 nm design. AMD has set the core speed at 625 MHz. The GDDR3 memory runs at a speed of 993 MHz on this card. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon R9 M370X, which comes with core speeds of 800 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M370X should theoretically be a bit better than the Radeon HD 4850 512MB in general. (explain)

Radeon R9 M370X 72000 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 8448 (13%)

Texel Rate

The Radeon R9 M370X should be quite a bit (approximately 28%) better at texture filtering than the Radeon HD 4850 512MB. (explain)

Radeon R9 M370X 32000 Mtexels/sec
Radeon HD 4850 512MB 25000 Mtexels/sec
Difference: 7000 (28%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M370X is a better choice, by a large margin. (explain)

Radeon R9 M370X 12800 Mpixels/sec
Radeon HD 4850 512MB 10000 Mpixels/sec
Difference: 2800 (28%)

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 4850 512MB

Amazon.com

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Radeon R9 M370X

Amazon.com

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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 4850 512MB Radeon R9 M370X
Manufacturer AMD AMD
Year Jun 25, 2008 2015
Code Name RV770 PRO Cape Verde
Memory 512 MB 2048 MB
Core Speed 625 MHz 800 MHz
Memory Speed 1986 MHz 4500 MHz
Power (Max TDP) 110 watts (Unknown) watts
Bandwidth 63552 MB/sec 72000 MB/sec
Texel Rate 25000 Mtexels/sec 32000 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 800(160x5) 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 956 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon R9 M370X

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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