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GeForce GT 310 vs Radeon HD 6450 (OEM)

Intro

The GeForce GT 310 makes use of a 40 nm design. nVidia has set the core frequency at 589 MHz. The DDR2 RAM is set to run at a speed of 1000 MHz on this particular model. It features 16 SPUs along with 8 TAUs and 4 ROPs.

Compare all that to the Radeon HD 6450 (OEM), which features GPU core speed of 625 MHz, and 512 MB of GDDR3 memory running at 800 MHz through a 64-bit bus. It also features 160 Stream Processors, 8 TAUs, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GT 310 is 25% faster than the Radeon HD 6450 (OEM) overall, because of its greater data rate. (explain)

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

Texel Rate

The Radeon HD 6450 (OEM) will be a little bit (about 6%) faster with regards to 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) is a small bit (more or less 6%) more effective at FSAA than the GeForce GT 310, and should be capable of handling higher screen 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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units 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 one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to 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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