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Radeon HD 4650 512MB vs Radeon R7 M260

Intro

The Radeon HD 4650 512MB uses a 55 nm design. AMD has clocked the core speed at 600 MHz. The DDR2 RAM runs at a frequency of 500 MHz on this particular model. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Compare all of that to the Radeon R7 M260, which has core speeds of 715 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 memory. It features 384 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should perform exactly the same. (explain)

Texel Rate

The Radeon HD 4650 512MB is a little bit (more or less 12%) more effective at AF than the Radeon R7 M260. (explain)

Radeon HD 4650 512MB 19200 Mtexels/sec
Radeon R7 M260 17160 Mtexels/sec
Difference: 2040 (12%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R7 M260 is superior to the Radeon HD 4650 512MB, but only just. (explain)

Radeon R7 M260 5720 Mpixels/sec
Radeon HD 4650 512MB 4800 Mpixels/sec
Difference: 920 (19%)

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 R7 M260

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 R7 M260
Manufacturer AMD AMD
Year Sep 10, 2008 June 2014
Code Name RV730 PRO Opal/Topaz
Memory 512 MB 2048 MB
Core Speed 600 MHz 715 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 17160 Mtexels/sec
Pixel Rate 4800 Mpixels/sec 5720 Mpixels/sec
Unified Shaders 320(64x5) 384
Texture Mapping Units 32 24
Render Output Units 8 8
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 maximum amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a 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 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 4650 512MB

Amazon.com

Check prices at:

Radeon R7 M260

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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