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Radeon HD 4650 512MB vs Radeon R7 M260

Intro

The Radeon HD 4650 512MB features a GPU core clock speed of 600 MHz, and the 512 MB of DDR2 RAM runs at 500 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 32 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the Radeon R7 M260, which uses a 28 nm design. AMD has clocked the core speed at 715 MHz. The DDR3 RAM runs at a frequency of 1000 MHz on this specific card. It features 384 SPUs as well as 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 memory bandwidth, so theoretically they should perform the same. (explain)

Texel Rate

The Radeon HD 4650 512MB is a bit (about 12%) better at anisotropic filtering than the Radeon R7 M260. (explain)

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

Pixel Rate

The Radeon R7 M260 will be a bit (about 19%) more effective at anti-aliasing than the Radeon HD 4650 512MB, and able to handle higher resolutions more effectively. (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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher 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 maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

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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