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GeForce GT 240 GDDR5 vs GeForce GT 430

Intro

The GeForce GT 240 GDDR5 comes with core speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 RAM. It features 96 SPUs along with 32 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the GeForce GT 430, which comes with GPU clock speed of 700 MHz, and 512 MB of GDDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 16 TAUs, and 4 ROPs.

(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

Theoretically, 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 should be a lot (more or less 57%) better at AF than the GeForce GT 430. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GT 240 GDDR5 is the winner, by a large margin. (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: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to 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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