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GeForce 9500 GT 512MB GDDR3 vs Radeon HD 3650

Intro

The GeForce 9500 GT 512MB GDDR3 uses a 55 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR3 RAM runs at a speed of 800 MHz on this specific card. It features 32 SPUs along with 16 Texture Address Units and 8 ROPs.

Compare those specs to the Radeon HD 3650, which has a core clock speed of 725 MHz and a GDDR4 memory frequency of 800 MHz. It also makes use of a 128-bit bus, and makes use of a 55 nm design. It is made up of 120(24x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 512MB GDDR3 50 Watts
Radeon HD 3650 78 Watts
Difference: 28 Watts (56%)

Memory Bandwidth

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

Texel Rate

The GeForce 9500 GT 512MB GDDR3 should be much (more or less 52%) better at texture filtering than the Radeon HD 3650. (explain)

GeForce 9500 GT 512MB GDDR3 8800 Mtexels/sec
Radeon HD 3650 5800 Mtexels/sec
Difference: 3000 (52%)

Pixel Rate

The GeForce 9500 GT 512MB GDDR3 will be quite a bit (approximately 52%) faster with regards to full screen anti-aliasing than the Radeon HD 3650, and should be able to handle higher resolutions better. (explain)

GeForce 9500 GT 512MB GDDR3 4400 Mpixels/sec
Radeon HD 3650 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 512MB GDDR3

Amazon.com

Check prices at:

Radeon HD 3650

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 512MB GDDR3 Radeon HD 3650
Manufacturer nVidia AMD
Year July 2008 2008
Code Name G96b RV635 PRO
Memory 512 MB 1024 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 GDDR4
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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 9500 GT 512MB GDDR3

Amazon.com

Check prices at:

Radeon HD 3650

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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