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GeForce GT 310 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GT 310 comes with clock speeds of 589 MHz on the GPU, and 1000 MHz on the 512 MB of DDR2 RAM. It features 16 SPUs along with 8 Texture Address Units and 4 ROPs.

Compare all that to the Radeon HD 6450 (OEM) 1GB, which comes with a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 RAM set to run at 900 MHz through a 64-bit bus. It also is made up of 160 Stream Processors, 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

Theoretically speaking, the Radeon HD 6450 (OEM) 1GB should be 80% quicker than the GeForce GT 310 in general, because of its greater data rate. (explain)

Radeon HD 6450 (OEM) 1GB 28800 MB/sec
GeForce GT 310 16000 MB/sec
Difference: 12800 (80%)

Texel Rate

The Radeon HD 6450 (OEM) 1GB is much (more or less 27%) better at anisotropic filtering than the GeForce GT 310. (explain)

Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
GeForce GT 310 4712 Mtexels/sec
Difference: 1288 (27%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6450 (OEM) 1GB is a better choice, by a large margin. (explain)

Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
GeForce GT 310 2356 Mpixels/sec
Difference: 644 (27%)

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) 1GB

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) 1GB
Manufacturer nVidia AMD
Year November 2009 February 2011
Code Name GT218 Caicos
Memory 512 MB 1024 MB
Core Speed 589 MHz 750 MHz
Memory Speed 2000 MHz 3600 MHz
Power (Max TDP) 31 watts 31 watts
Bandwidth 16000 MB/sec 28800 MB/sec
Texel Rate 4712 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 2356 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 16 160
Texture Mapping Units 8 8
Render Output Units 4 4
Bus Type DDR2 GDDR5
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 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 bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 310

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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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