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GeForce 9600 GSO 768MB vs GeForce GT 420

Intro

The GeForce 9600 GSO 768MB features a core clock speed of 550 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 192-bit memory bus, and makes use of a 65 nm design. It features 96 SPUs, 48 Texture Address Units, and 12 ROPs.

Compare those specifications to the GeForce GT 420, which comes with a core clock speed of 700 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It features 48 SPUs, 8 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 420 50 Watts
GeForce 9600 GSO 768MB 84 Watts
Difference: 34 Watts (68%)

Memory Bandwidth

Performance-wise, the GeForce 9600 GSO 768MB should theoretically be a lot superior to the GeForce GT 420 in general. (explain)

GeForce 9600 GSO 768MB 38400 MB/sec
GeForce GT 420 28800 MB/sec
Difference: 9600 (33%)

Texel Rate

The GeForce 9600 GSO 768MB should be quite a bit (approximately 371%) faster with regards to AF than the GeForce GT 420. (explain)

GeForce 9600 GSO 768MB 26400 Mtexels/sec
GeForce GT 420 5600 Mtexels/sec
Difference: 20800 (371%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 9600 GSO 768MB is the winner, by far. (explain)

GeForce 9600 GSO 768MB 6600 Mpixels/sec
GeForce GT 420 2800 Mpixels/sec
Difference: 3800 (136%)

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 9600 GSO 768MB

Amazon.com

Check prices at:

GeForce GT 420

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 9600 GSO 768MB GeForce GT 420
Manufacturer nVidia nVidia
Year May 2008 September 2010
Code Name G92 GF108
Memory 768 MB 2048 MB
Core Speed 550 MHz 700 MHz
Memory Speed 1600 MHz 1800 MHz
Power (Max TDP) 84 watts 50 watts
Bandwidth 38400 MB/sec 28800 MB/sec
Texel Rate 26400 Mtexels/sec 5600 Mtexels/sec
Pixel Rate 6600 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 96 48
Texture Mapping Units 48 8
Render Output Units 12 4
Bus Type GDDR3 GDDR3
Bus Width 192-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 754 million 585 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. 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 fill 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.

Display Prices

Hide Prices

GeForce 9600 GSO 768MB

Amazon.com

Check prices at:

GeForce GT 420

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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