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Radeon HD 4650 512MB vs Radeon R5 M230

Intro

The Radeon HD 4650 512MB has a clock speed of 600 MHz and a DDR2 memory frequency of 500 MHz. It also features a 128-bit bus, and uses a 55 nm design. It is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Compare all of that to the Radeon R5 M230, which uses a 28 nm design. AMD has set the core speed at 780 MHz. The DDR3 memory is set to run at a speed of 1000 MHz on this specific card. It features 320 SPUs as well as 20 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The Radeon HD 4650 512MB should be a lot (about 23%) better at anisotropic filtering than the Radeon R5 M230. (explain)

Radeon HD 4650 512MB 19200 Mtexels/sec
Radeon R5 M230 15600 Mtexels/sec
Difference: 3600 (23%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 4650 512MB is a better choice, by a large margin. (explain)

Radeon HD 4650 512MB 4800 Mpixels/sec
Radeon R5 M230 3120 Mpixels/sec
Difference: 1680 (54%)

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 4650 512MB

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 4650 512MB Radeon R5 M230
Manufacturer AMD AMD
Year Sep 10, 2008 2014
Code Name RV730 PRO Jet Pro
Memory 512 MB 2048 MB
Core Speed 600 MHz 780 MHz
Memory Speed 1000 MHz 2000 MHz
Power (Max TDP) 55 watts (Unknown) watts
Bandwidth 16000 MB/sec 16000 MB/sec
Texel Rate 19200 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 4800 Mpixels/sec 3120 Mpixels/sec
Unified Shaders 320(64x5) 320
Texture Mapping Units 32 20
Render Output Units 8 4
Bus Type DDR2 DDR3
Bus Width 128-bit 64-bit
Fab Process 55 nm 28 nm
Transistors 514 million (Unknown) million
Bus PCIe 2.0 x16, AGP 8x PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be applied 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 higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 4650 512MB

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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