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GeForce GT 310 vs Radeon HD 6450 (OEM)

Intro

The GeForce GT 310 has a GPU clock speed of 589 MHz, and the 512 MB of DDR2 memory runs at 1000 MHz through a 64-bit bus. It also is comprised of 16 Stream Processors, 8 TAUs, and 4 ROPs.

Compare those specifications to the Radeon HD 6450 (OEM), which has a GPU core clock speed of 625 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 64-bit bus. It also is made up of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the GeForce GT 310 should in theory be much better than the Radeon HD 6450 (OEM) overall. (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 just a bit (approximately 6%) faster with regards to texture 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 (more or less 6%) better at full screen anti-aliasing than the GeForce GT 310, and will be capable of handling higher screen resolutions more effectively. (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

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 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 maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once 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 AA, High Dynamic Range 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 is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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