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GeForce 9500 GT 1GB GDDR3 vs Radeon HD 3650 256MB

Intro

The GeForce 9500 GT 1GB GDDR3 comes with a GPU clock speed of 550 MHz, and the 1024 MB of GDDR3 RAM is set to run at 800 MHz through a 128-bit bus. It also features 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare all of that to the Radeon HD 3650 256MB, which uses a 55 nm design. AMD has set the core speed at 725 MHz. The DDR2 memory works at a frequency of 800 MHz on this particular card. It features 120(24x5) SPUs as well as 8 TAUs and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3 50 Watts
Radeon HD 3650 256MB 78 Watts
Difference: 28 Watts (56%)

Memory Bandwidth

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

Texel Rate

The GeForce 9500 GT 1GB GDDR3 will be a lot (about 52%) faster with regards to anisotropic filtering than the Radeon HD 3650 256MB. (explain)

GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 3000 (52%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 9500 GT 1GB GDDR3 is superior to the Radeon HD 3650 256MB, by a large margin. (explain)

GeForce 9500 GT 1GB GDDR3 4400 Mpixels/sec
Radeon HD 3650 256MB 2900 Mpixels/sec
Difference: 1500 (52%)

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 9500 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 3650 256MB

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 9500 GT 1GB GDDR3 Radeon HD 3650 256MB
Manufacturer nVidia AMD
Year July 2008 2008
Code Name G96b RV635 PRO
Memory 1024 MB 256 MB
Core Speed 550 MHz 725 MHz
Memory Speed 1600 MHz 1600 MHz
Power (Max TDP) 50 watts 78 watts
Bandwidth 25600 MB/sec 25600 MB/sec
Texel Rate 8800 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 32 120(24x5)
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type GDDR3 DDR2
Bus Width 128-bit 128-bit
Fab Process 55 nm 55 nm
Transistors 314 million (Unknown) million
Bus PCIe x16 2.0, PCI PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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

Display Prices

Hide Prices

GeForce 9500 GT 1GB GDDR3

Amazon.com

Check prices at:

Radeon HD 3650 256MB

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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