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GeForce 9800 GT 512MB vs GeForce GTX 750

Intro

The GeForce 9800 GT 512MB features clock speeds of 600 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 memory. It features 112 SPUs as well as 56 Texture Address Units and 16 ROPs.

Compare those specifications to the GeForce GTX 750, which features core clock speeds of 1020 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs along with 32 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 55 Watts
GeForce 9800 GT 512MB 105 Watts
Difference: 50 Watts (91%)

Memory Bandwidth

In theory, the GeForce GTX 750 will be 39% quicker than the GeForce 9800 GT 512MB in general, because of its higher data rate. (explain)

GeForce GTX 750 80000 MB/sec
GeForce 9800 GT 512MB 57600 MB/sec
Difference: 22400 (39%)

Texel Rate

The GeForce 9800 GT 512MB should be just a bit (about 3%) better at anisotropic filtering than the GeForce GTX 750. (explain)

GeForce 9800 GT 512MB 33600 Mtexels/sec
GeForce GTX 750 32640 Mtexels/sec
Difference: 960 (3%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 750 is the winner, by a large margin. (explain)

GeForce GTX 750 16320 Mpixels/sec
GeForce 9800 GT 512MB 9600 Mpixels/sec
Difference: 6720 (70%)

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 9800 GT 512MB

Amazon.com

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GeForce GTX 750

Amazon.com

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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 9800 GT 512MB GeForce GTX 750
Manufacturer nVidia nVidia
Year July 2008 February 2014
Code Name G92a/b GM107
Memory 512 MB 1024 MB
Core Speed 600 MHz 1020 MHz
Memory Speed 1800 MHz 5000 MHz
Power (Max TDP) 105 watts 55 watts
Bandwidth 57600 MB/sec 80000 MB/sec
Texel Rate 33600 Mtexels/sec 32640 Mtexels/sec
Pixel Rate 9600 Mpixels/sec 16320 Mpixels/sec
Unified Shaders 112 512
Texture Mapping Units 56 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 28 nm
Transistors 754 million 1870 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.4

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total number 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 a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce 9800 GT 512MB

Amazon.com

Check prices at:

GeForce GTX 750

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.

Comments

One Response to “GeForce 9800 GT 512MB vs GeForce GTX 750”
yackaro says:

i am going to upgrade from the 9800 GT 512M from XFX (their wierd version that somehow runs without a power connector yet its the regular version rather than the green edition) to an EVGA GTX 750 FTW edition w/ACX cooling. All I can find about it other than newegg is reviews and unboxing etc. for the 750 ti version. maybe since its exclusive to newegg and requires more than zero effort to find, noone else has bought it yet? its on sale for $99.99, so that's why I got it instead of one of the more "regular" GTX 750's (the shorter ones w/out the 6-pin input). Will make unboxing videoas soon as it arrives on the 23rd of the month/year this comment was typed in (December 2014). I seriously hope it includes a molex to 6-pin adapter, my POS dell PSU only has a single 4-pin connector.

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