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GeForce GT 240 GDDR5 vs GeForce GT 430

Intro

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

Compare all of that to the GeForce GT 430, which has GPU clock speed of 700 MHz, and 512 MB of GDDR3 RAM set to run at 900 MHz through a 128-bit bus. It also features 96 Stream Processors, 16 TAUs, and 4 Raster Operation Units.

(No game benchmarks for this combination yet.)

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

As far as performance goes, the GeForce GT 240 GDDR5 should theoretically be a lot better than the GeForce GT 430 overall. (explain)

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

Texel Rate

The GeForce GT 240 GDDR5 should be quite a bit (more or less 57%) faster with regards to texture 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 is much (more or less 57%) more effective at AA than the GeForce GT 430, and capable of handling higher screen resolutions without slowing down too much. (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

Amazon.com

GeForce GT 430

Amazon.com

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

Model GeForce GT 240 GDDR5 GeForce GT 430
Manufacturer nVidia nVidia
Year Novermber 2009 October 2010
Code Name GT215 GF108
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe x16
Memory 512 MB 512 MB
Core Speed 550 MHz 700 MHz
Shader Speed 1360 MHz 1400 MHz
Memory Speed 850 MHz (3400 MHz effective) 900 MHz (1800 MHz effective)
Unified Shaders 96 96
Texture Mapping Units 32 16
Render Output Units 8 4
Bus Type GDDR5 GDDR3
Bus Width 128-bit 128-bit
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1
Power (Max TDP) 70 watts 60 watts
Shader Model 4.1 5.0
Bandwidth 54400 MB/sec 28800 MB/sec
Texel Rate 17600 Mtexels/sec 11200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2800 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock 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 fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Comments

One Response to “GeForce GT 240 GDDR5 vs GeForce GT 430”
[...] 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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