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Radeon HD 4850 X2 1GB vs Radeon R5 M230

Intro

The Radeon HD 4850 X2 1GB makes use of a 55 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 RAM is set to run at a frequency of 993 MHz on this particular model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon R5 M230, which has GPU core speed of 780 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also is comprised of 320 SPUs, 20 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon HD 4850 X2 1GB should perform quite a bit faster than the Radeon R5 M230 overall. (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%) more effective at 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 should be a lot (about 541%) better at anti-aliasing than the Radeon R5 M230, and also capable of handling higher 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 max amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max 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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