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Radeon HD 3650 512MB vs Radeon HD 6570 (OEM) 2GB

Intro

The Radeon HD 3650 512MB uses a 55 nm design. AMD has set the core speed at 725 MHz. The GDDR3 RAM runs at a frequency of 800 MHz on this particular model. It features 120(24x5) SPUs along with 8 Texture Address Units and 4 ROPs.

Compare all of that to the Radeon HD 6570 (OEM) 2GB, which comes with core clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB 50 Watts
Radeon HD 3650 512MB 78 Watts
Difference: 28 Watts (56%)

Memory Bandwidth

The Radeon HD 6570 (OEM) 2GB should theoretically be quite a bit faster than the Radeon HD 3650 512MB overall. (explain)

Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Radeon HD 3650 512MB 25600 MB/sec
Difference: 38400 (150%)

Texel Rate

The Radeon HD 6570 (OEM) 2GB will be much (more or less 169%) better at anisotropic filtering than the Radeon HD 3650 512MB. (explain)

Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Radeon HD 3650 512MB 5800 Mtexels/sec
Difference: 9800 (169%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6570 (OEM) 2GB is a better choice, and very much so. (explain)

Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Radeon HD 3650 512MB 2900 Mpixels/sec
Difference: 2300 (79%)

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 3650 512MB

Amazon.com

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Radeon HD 6570 (OEM) 2GB

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 3650 512MB Radeon HD 6570 (OEM) 2GB
Manufacturer AMD AMD
Year 2008 February 2011
Code Name RV635 PRO Turks
Memory 512 MB 1024 MB
Core Speed 725 MHz 650 MHz
Memory Speed 1600 MHz 4000 MHz
Power (Max TDP) 78 watts 50 watts
Bandwidth 25600 MB/sec 64000 MB/sec
Texel Rate 5800 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 120(24x5) 480
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 715 million
Bus PCIe 2.0 x16/AGP 8x PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 3650 512MB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 2GB

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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