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GeForce GTX 570 vs Radeon HD 3650 512MB

Intro

The GeForce GTX 570 has a core clock frequency of 732 MHz and a GDDR5 memory frequency of 950 MHz. It also features a 320-bit bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 40 Raster Operation Units.

Compare those specs to the Radeon HD 3650 512MB, which has a core clock frequency of 725 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 128-bit bus, and uses a 55 nm design. It is made up of 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 512MB 78 Watts
GeForce GTX 570 219 Watts
Difference: 141 Watts (181%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 570 should be 494% faster than the Radeon HD 3650 512MB in general, due to its greater data rate. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 3650 512MB 25600 MB/sec
Difference: 126400 (494%)

Texel Rate

The GeForce GTX 570 should be much (more or less 657%) better at texture filtering than the Radeon HD 3650 512MB. (explain)

GeForce GTX 570 43920 Mtexels/sec
Radeon HD 3650 512MB 5800 Mtexels/sec
Difference: 38120 (657%)

Pixel Rate

The GeForce GTX 570 will be much (more or less 910%) better at AA than the Radeon HD 3650 512MB, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 570 29280 Mpixels/sec
Radeon HD 3650 512MB 2900 Mpixels/sec
Difference: 26380 (910%)

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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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 3650 512MB

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 GeForce GTX 570 Radeon HD 3650 512MB
Manufacturer nVidia AMD
Year December 2010 2008
Code Name GF110 RV635 PRO
Memory 1280 MB 512 MB
Core Speed 732 MHz 725 MHz
Memory Speed 3800 MHz 1600 MHz
Power (Max TDP) 219 watts 78 watts
Bandwidth 152000 MB/sec 25600 MB/sec
Texel Rate 43920 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 480 120(24x5)
Texture Mapping Units 60 8
Render Output Units 40 4
Bus Type GDDR5 GDDR3
Bus Width 320-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 3000 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 can be processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 3650 512MB

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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