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GeForce GT 430 1GB vs GeForce GTX 650

Intro

The GeForce GT 430 1GB makes use of a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this specific card. It features 96 SPUs as well as 16 Texture Address Units and 4 Rasterization Operator Units.

Compare all of that to the GeForce GTX 650, which has a core clock speed of 1058 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 384 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
GeForce GTX 650 64 Watts
Difference: 4 Watts (7%)

Memory Bandwidth

The GeForce GTX 650, in theory, should be a lot faster than the GeForce GT 430 1GB overall. (explain)

GeForce GTX 650 80000 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 51200 (178%)

Texel Rate

The GeForce GTX 650 should be a lot (approximately 202%) faster with regards to anisotropic filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 650 33856 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 22656 (202%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 is superior to the GeForce GT 430 1GB, by far. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 14128 (505%)

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 430 1GB

Amazon.com

GeForce GTX 650

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

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Model GeForce GT 430 1GB GeForce GTX 650
Manufacturer nVidia nVidia
Year October 2010 September 2012
Code Name GF108 GK107
Memory 1024 MB 2048 MB
Core Speed 700 MHz 1058 MHz
Memory Speed 1800 MHz 5000 MHz
Power (Max TDP) 60 watts 64 watts
Bandwidth 28800 MB/sec 80000 MB/sec
Texel Rate 11200 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 96 384
Texture Mapping Units 16 32
Render Output Units 4 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 585 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

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