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GeForce GT 310 vs Radeon HD 6450 (OEM)

Intro

The GeForce GT 310 has a clock speed of 589 MHz and a DDR2 memory speed of 1000 MHz. It also features a 64-bit bus, and uses a 40 nm design. It is made up of 16 SPUs, 8 TAUs, and 4 Raster Operation Units.

Compare those specifications to the Radeon HD 6450 (OEM), which features clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 160 SPUs along with 8 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically, the GeForce GT 310 should be a lot faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GT 310 16000 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 3200 (25%)

Texel Rate

The Radeon HD 6450 (OEM) should be a little bit (more or less 6%) more effective at anisotropic filtering than the GeForce GT 310. (explain)

Radeon HD 6450 (OEM) 5000 Mtexels/sec
GeForce GT 310 4712 Mtexels/sec
Difference: 288 (6%)

Pixel Rate

The Radeon HD 6450 (OEM) will be just a bit (about 6%) more effective at full screen anti-aliasing than the GeForce GT 310, and will be able to handle higher resolutions while still performing well. (explain)

Radeon HD 6450 (OEM) 2500 Mpixels/sec
GeForce GT 310 2356 Mpixels/sec
Difference: 144 (6%)

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 310

Amazon.com

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Radeon HD 6450 (OEM)

Amazon.com

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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 310 Radeon HD 6450 (OEM)
Manufacturer nVidia AMD
Year November 2009 February 2011
Code Name GT218 Caicos
Memory 512 MB 512 MB
Core Speed 589 MHz 625 MHz
Memory Speed 2000 MHz 1600 MHz
Power (Max TDP) 31 watts 31 watts
Bandwidth 16000 MB/sec 12800 MB/sec
Texel Rate 4712 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 2356 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 16 160
Texture Mapping Units 8 8
Render Output Units 4 4
Bus Type DDR2 GDDR3
Bus Width 64-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 260 million 370 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface within 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 ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GT 310

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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