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GeForce GT 240 GDDR5 1GB vs GeForce GTX 650

Intro

The GeForce GT 240 GDDR5 1GB comes with core clock speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 96 SPUs along with 32 Texture Address Units and 8 ROPs.

Compare those specs to the GeForce GTX 650, which comes with a GPU core clock speed of 1058 MHz, and 1024 MB of GDDR5 memory set to run at 1250 MHz through a 128-bit bus. It also features 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GT 240 GDDR5 1GB 70 Watts
Difference: 6 Watts (9%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 should be 47% faster than the GeForce GT 240 GDDR5 1GB in general, due to its greater bandwidth. (explain)

GeForce GTX 650 80000 MB/sec
GeForce GT 240 GDDR5 1GB 54400 MB/sec
Difference: 25600 (47%)

Texel Rate

The GeForce GTX 650 should be quite a bit (about 92%) better at texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce GT 240 GDDR5 1GB 17600 Mtexels/sec
Difference: 16256 (92%)

Pixel Rate

The GeForce GTX 650 will be a lot (about 285%) better at FSAA than the GeForce GT 240 GDDR5 1GB, and capable of handling higher resolutions more effectively. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GT 240 GDDR5 1GB 4400 Mpixels/sec
Difference: 12528 (285%)

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 1GB

Amazon.com

Check prices at:

GeForce GTX 650

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 1GB GeForce GTX 650
Manufacturer nVidia nVidia
Year November 2009 September 2012
Code Name GT215 GK107
Memory 1024 MB 1024 MB
Core Speed 550 MHz 1058 MHz
Memory Speed 3400 MHz 5000 MHz
Power (Max TDP) 70 watts 64 watts
Bandwidth 54400 MB/sec 80000 MB/sec
Texel Rate 17600 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 96 384
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 289 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.0
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the 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 that the graphics card can 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 clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5 1GB

Amazon.com

Check prices at:

GeForce GTX 650

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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