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Radeon HD 4850 2GB vs Radeon R9 M365X

Intro

The Radeon HD 4850 2GB has a GPU clock speed of 625 MHz, and the 2048 MB of GDDR4 RAM is set to run at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Compare all of that to the Radeon R9 M365X, which has a GPU core clock speed of 925 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M365X, in theory, should be a little bit faster than the Radeon HD 4850 2GB overall. (explain)

Radeon R9 M365X 72000 MB/sec
Radeon HD 4850 2GB 63552 MB/sec
Difference: 8448 (13%)

Texel Rate

The Radeon R9 M365X will be a lot (about 48%) faster with regards to AF than the Radeon HD 4850 2GB. (explain)

Radeon R9 M365X 37000 Mtexels/sec
Radeon HD 4850 2GB 25000 Mtexels/sec
Difference: 12000 (48%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M365X is superior to the Radeon HD 4850 2GB, by far. (explain)

Radeon R9 M365X 14800 Mpixels/sec
Radeon HD 4850 2GB 10000 Mpixels/sec
Difference: 4800 (48%)

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 2GB

Amazon.com

Check prices at:

Radeon R9 M365X

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 4850 2GB Radeon R9 M365X
Manufacturer AMD AMD
Year Jun 25, 2008 2015
Code Name RV770 PRO Cape Verde
Memory 2048 MB 4096 MB
Core Speed 625 MHz 925 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 37000 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 14800 Mpixels/sec
Unified Shaders 800(160x5) 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR4 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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4850 2GB

Amazon.com

Check prices at:

Radeon R9 M365X

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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