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Radeon HD 4850 X2 1GB vs Radeon R5 M230

Intro

The Radeon HD 4850 X2 1GB comes with a GPU core clock speed of 625 MHz, and the 1024 MB of GDDR3 memory runs at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Compare all that to the Radeon R5 M230, which uses a 28 nm design. AMD has clocked the core frequency at 780 MHz. The DDR3 memory runs at a frequency of 1000 MHz on this card. It features 320 SPUs along with 20 TAUs and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 4850 X2 1GB should in theory be a lot superior to the Radeon R5 M230 in general. (explain)

Radeon HD 4850 X2 1GB 127104 MB/sec
Radeon R5 M230 16000 MB/sec
Difference: 111104 (694%)

Texel Rate

The Radeon HD 4850 X2 1GB is a lot (more or less 221%) faster with regards to texture filtering than the Radeon R5 M230. (explain)

Radeon HD 4850 X2 1GB 50000 Mtexels/sec
Radeon R5 M230 15600 Mtexels/sec
Difference: 34400 (221%)

Pixel Rate

The Radeon HD 4850 X2 1GB is much (more or less 541%) better at anti-aliasing than the Radeon R5 M230, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 4850 X2 1GB 20000 Mpixels/sec
Radeon R5 M230 3120 Mpixels/sec
Difference: 16880 (541%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 4850 X2 1GB

Amazon.com

Check prices at:

Radeon R5 M230

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 X2 1GB Radeon R5 M230
Manufacturer AMD AMD
Year Nov 7, 2008 2014
Code Name R700 Jet Pro
Memory 1024 MB (x2) 2048 MB
Core Speed 625 MHz (x2) 780 MHz
Memory Speed 1986 MHz (x2) 2000 MHz
Power (Max TDP) 250 watts (Unknown) watts
Bandwidth 127104 MB/sec 16000 MB/sec
Texel Rate 50000 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 20000 Mpixels/sec 3120 Mpixels/sec
Unified Shaders 800(160x5) (x2) 320
Texture Mapping Units 40 (x2) 20
Render Output Units 16 (x2) 4
Bus Type GDDR3 DDR3
Bus Width 256-bit (x2) 64-bit
Fab Process 55 nm 28 nm
Transistors 956 million (Unknown) million
Bus PCIe 2.0 x16 (PCIe bridge) PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its 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 - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4850 X2 1GB

Amazon.com

Check prices at:

Radeon R5 M230

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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