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GeForce 8300 GS (OEM) vs GeForce 8400 GS 512MB

Intro

The GeForce 8300 GS (OEM) features core speeds of 450 MHz on the GPU, and 400 MHz on the 128 MB of DDR2 memory. It features 8 SPUs as well as 4 Texture Address Units and 2 ROPs.

Compare those specifications to the GeForce 8400 GS 512MB, which features a core clock speed of 650 MHz and a DDR2 memory frequency of 400 MHz. It also makes use of a 64-bit bus, and makes use of a 80 nm design. It features 16 SPUs, 8 TAUs, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should perform exactly the same. (explain)

Texel Rate

The GeForce 8400 GS 512MB is quite a bit (more or less 189%) faster with regards to texture filtering than the GeForce 8300 GS (OEM). (explain)

GeForce 8400 GS 512MB 5200 Mtexels/sec
GeForce 8300 GS (OEM) 1800 Mtexels/sec
Difference: 3400 (189%)

Pixel Rate

The GeForce 8400 GS 512MB should be quite a bit (approximately 189%) better at FSAA than the GeForce 8300 GS (OEM), and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce 8400 GS 512MB 2600 Mpixels/sec
GeForce 8300 GS (OEM) 900 Mpixels/sec
Difference: 1700 (189%)

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 8300 GS (OEM)

Amazon.com

Check prices at:

GeForce 8400 GS 512MB

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 8300 GS (OEM) GeForce 8400 GS 512MB
Manufacturer nVidia nVidia
Year July 2007 June 2007
Code Name G86 G86
Memory 128 MB 512 MB
Core Speed 450 MHz 650 MHz
Memory Speed 800 MHz 800 MHz
Power (Max TDP) 40 watts 40 watts
Bandwidth 6400 MB/sec 6400 MB/sec
Texel Rate 1800 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 900 Mpixels/sec 2600 Mpixels/sec
Unified Shaders 8 16
Texture Mapping Units 4 8
Render Output Units 2 4
Bus Type DDR2 DDR2
Bus Width 64-bit 64-bit
Fab Process 80 nm 80 nm
Transistors 210 million 210 million
Bus PCI Express x16 PCIe x16, PCI
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, 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 amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 8300 GS (OEM)

Amazon.com

Check prices at:

GeForce 8400 GS 512MB

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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