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GeForce GT 240 GDDR5 vs GeForce GTS 450 1GB

Intro

The GeForce GT 240 GDDR5 uses a 40 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR5 RAM runs at a speed of 850 MHz on this card. It features 96 SPUs along with 32 TAUs and 8 ROPs.

Compare those specs to the GeForce GTS 450 1GB, which comes with GPU clock speed of 783 MHz, and 1024 MB of GDDR5 RAM running at 902 MHz through a 128-bit bus. It also features 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 1GB 106 Watts
Difference: 36 Watts (51%)

Memory Bandwidth

In theory, the GeForce GTS 450 1GB will be 6% faster than the GeForce GT 240 GDDR5 overall, due to its higher data rate. (explain)

GeForce GTS 450 1GB 57728 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 3328 (6%)

Texel Rate

The GeForce GTS 450 1GB will be quite a bit (more or less 42%) faster with regards to texture filtering than the GeForce GT 240 GDDR5. (explain)

GeForce GTS 450 1GB 25056 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 7456 (42%)

Pixel Rate

The GeForce GTS 450 1GB will be quite a bit (more or less 185%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5, and capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTS 450 1GB 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 1GB

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 1GB
Manufacturer nVidia nVidia
Year Novermber 2009 September 2010
Code Name GT215 GF106
Memory 512 MB 1024 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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 can be applied per 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

GeForce GTS 450 1GB

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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