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GeForce 9500 GT DDR2 vs GeForce GTX 650 Ti


Intro

The GeForce 9500 GT DDR2 features a GPU core clock speed of 550 MHz, and the 256 MB of DDR2 RAM is set to run at 500 MHz through a 128-bit bus. It also is comprised of 32 SPUs, 16 Texture Address Units, and 8 ROPs.

Compare those specs to the GeForce GTX 650 Ti, which comes with GPU clock speed of 928 MHz, and 1024 MB of GDDR5 memory running at 1350 MHz through a 128-bit bus. It also features 768 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
GeForce GTX 650 Ti 110 Watts
Difference: 60 Watts (120%)

Memory Bandwidth

In theory, the GeForce GTX 650 Ti should be quite a bit faster than the GeForce 9500 GT DDR2 overall. (explain)

GeForce GTX 650 Ti 86400 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 70400 (440%)

Texel Rate

The GeForce GTX 650 Ti should be quite a bit (approximately 575%) better at texture filtering than the GeForce 9500 GT DDR2. (explain)

GeForce GTX 650 Ti 59392 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 50592 (575%)

Pixel Rate

The GeForce GTX 650 Ti should be a lot (about 237%) better at full screen anti-aliasing than the GeForce 9500 GT DDR2, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 650 Ti 14848 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 10448 (237%)

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

GeForce 9500 GT DDR2

GeForce GTX 650 Ti

Specifications

Display Specifications

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Model GeForce 9500 GT DDR2 GeForce GTX 650 Ti
Manufacturer nVidia nVidia
Year July 2008 October 2012
Code Name G96a GK106
Memory 256 MB 1024 MB
Core Speed 550 MHz 928 MHz
Memory Speed 1000 MHz 5400 MHz
Power (Max TDP) 50 watts 110 watts
Bandwidth 16000 MB/sec 86400 MB/sec
Texel Rate 8800 Mtexels/sec 59392 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 14848 Mpixels/sec
Unified Shaders 32 768
Texture Mapping Units 16 64
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 314 million 2540 million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

GeForce 9500 GT DDR2

GeForce GTX 650 Ti

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