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GeForce GT 240 GDDR5 vs GeForce GT 450 (OEM)

Intro

The GeForce GT 240 GDDR5 uses a 40 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR5 RAM works at a frequency of 850 MHz on this particular model. It features 96 SPUs along with 32 Texture Address Units and 8 ROPs.

Compare that to the GeForce GT 450 (OEM), which comes with GPU core speed of 790 MHz, and 1536 MB of GDDR5 memory running at 1000 MHz through a 192-bit bus. It also is comprised of 144 Stream Processors, 24 TAUs, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
GeForce GT 450 (OEM) 106 Watts
Difference: 36 Watts (51%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 450 (OEM) should be quite a bit faster than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GT 450 (OEM) 96000 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 41600 (76%)

Texel Rate

The GeForce GT 450 (OEM) is a little bit (about 8%) better at texture filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GT 450 (OEM) 18960 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 1360 (8%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 450 (OEM) is superior to the GeForce GT 240 GDDR5, by far. (explain)

GeForce GT 450 (OEM) 18960 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 14560 (331%)

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 GT 240 GDDR5

Amazon.com

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GeForce GT 450 (OEM)

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 GT 240 GDDR5 GeForce GT 450 (OEM)
Manufacturer nVidia nVidia
Year Novermber 2009 October 2010
Code Name GT215 GF106
Memory 512 MB 1536 MB
Core Speed 550 MHz 790 MHz
Memory Speed 3400 MHz 4000 MHz
Power (Max TDP) 70 watts 106 watts
Bandwidth 54400 MB/sec 96000 MB/sec
Texel Rate 17600 Mtexels/sec 18960 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 18960 Mpixels/sec
Unified Shaders 96 144
Texture Mapping Units 32 24
Render Output Units 8 24
Bus Type GDDR5 GDDR5
Bus Width 128-bit 192-bit
Fab Process 40 nm 40 nm
Transistors 289 million 1170 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card 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 core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably 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 GT 240 GDDR5

Amazon.com

Check prices at:

GeForce GT 450 (OEM)

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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