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GeForce GT 240 GDDR5 vs GeForce GT 430

Intro

The GeForce GT 240 GDDR5 has a GPU clock speed of 550 MHz, and the 512 MB of GDDR5 RAM runs at 850 MHz through a 128-bit bus. It also features 96 SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Compare all that to the GeForce GT 430, which has a core clock speed of 700 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 128-bit bus, and uses a 40 nm design. It is comprised of 96 SPUs, 16 Texture Address Units, and 4 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 60 Watts
GeForce GT 240 GDDR5 70 Watts
Difference: 10 Watts (17%)

Memory Bandwidth

Theoretically speaking, the GeForce GT 240 GDDR5 should perform a lot faster than the GeForce GT 430 in general. (explain)

GeForce GT 240 GDDR5 54400 MB/sec
GeForce GT 430 28800 MB/sec
Difference: 25600 (89%)

Texel Rate

The GeForce GT 240 GDDR5 is quite a bit (about 57%) more effective at anisotropic filtering than the GeForce GT 430. (explain)

GeForce GT 240 GDDR5 17600 Mtexels/sec
GeForce GT 430 11200 Mtexels/sec
Difference: 6400 (57%)

Pixel Rate

The GeForce GT 240 GDDR5 will be a lot (about 57%) better at AA than the GeForce GT 430, and also capable of handling higher screen resolutions better. (explain)

GeForce GT 240 GDDR5 4400 Mpixels/sec
GeForce GT 430 2800 Mpixels/sec
Difference: 1600 (57%)

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

GeForce GT 240 GDDR5

GeForce GT 430

Specifications

Display Specifications

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Model GeForce GT 240 GDDR5 GeForce GT 430
Manufacturer nVidia nVidia
Year Novermber 2009 October 2010
Code Name GT215 GF108
Memory 512 MB 512 MB
Core Speed 550 MHz 700 MHz
Memory Speed 3400 MHz 1800 MHz
Power (Max TDP) 70 watts 60 watts
Bandwidth 54400 MB/sec 28800 MB/sec
Texel Rate 17600 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 96 96
Texture Mapping Units 32 16
Render Output Units 8 4
Bus Type GDDR5 GDDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 289 million 585 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 information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

GeForce GT 240 GDDR5

GeForce GT 430

Comments

One Response to “GeForce GT 240 GDDR5 vs GeForce GT 430”
Ajutor in crearea unui Wishlist decent - My Garage says:

[...] http://www.hwcompare.com/7039/geforc...eforce-gt-430/ Pixel Rate If using a high resolution is important to you, then the GeForce GT 240 GDDR5 is superior to the GeForce GT 430, and very much so (buna incercare cu acel 1680X1050 dar omul probabil are un 1280X1024 pe care "nu-l schimba: [...]

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