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GeForce GT 240 GDDR5 vs GeForce GTS 450

Intro

The GeForce GT 240 GDDR5 comes with a GPU clock speed of 550 MHz, and the 512 MB of GDDR5 memory is set to run at 850 MHz through a 128-bit bus. It also features 96 Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Compare all of that to the GeForce GTS 450, which comes with GPU clock speed of 783 MHz, and 512 MB of GDDR5 RAM running at 902 MHz through a 128-bit bus. It also is comprised of 192 SPUs, 32 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the GeForce GTS 450 should in theory be just a bit better than the GeForce GT 240 GDDR5 in general. (explain)

GeForce GTS 450 57728 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 3328 (6%)

Texel Rate

The GeForce GTS 450 should be a lot (approximately 42%) more effective at texture filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GTS 450 25056 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 7456 (42%)

Pixel Rate

The GeForce GTS 450 should be a lot (about 185%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTS 450 12528 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 8128 (185%)

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

Check prices at:

GeForce GTS 450

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 GT 240 GDDR5 GeForce GTS 450
Manufacturer nVidia nVidia
Year Novermber 2009 September 2010
Code Name GT215 GF106
Memory 512 MB 512 MB
Core Speed 550 MHz 783 MHz
Memory Speed 3400 MHz 3608 MHz
Power (Max TDP) 70 watts 106 watts
Bandwidth 54400 MB/sec 57728 MB/sec
Texel Rate 17600 Mtexels/sec 25056 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 12528 Mpixels/sec
Unified Shaders 96 192
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-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: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

GeForce GTS 450

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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