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GeForce GT 315 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GT 315 comes with core speeds of 625 MHz on the GPU, and 790 MHz on the 512 MB of DDR3 RAM. It features 48 SPUs as well as 16 TAUs and 8 ROPs.

Compare all of that to the Radeon HD 6450 (OEM) 1GB, which features a core clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 64-bit bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce GT 315 52 Watts
Difference: 21 Watts (68%)

Memory Bandwidth

In theory, the Radeon HD 6450 (OEM) 1GB will be 14% quicker than the GeForce GT 315 in general, because of its greater data rate. (explain)

Radeon HD 6450 (OEM) 1GB 28800 MB/sec
GeForce GT 315 25280 MB/sec
Difference: 3520 (14%)

Texel Rate

The GeForce GT 315 is a lot (more or less 67%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GT 315 10000 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 4000 (67%)

Pixel Rate

The GeForce GT 315 is a lot (approximately 67%) better at full screen anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and should be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GT 315 5000 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 2000 (67%)

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 315

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.

Specifications

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Model GeForce GT 315 Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year November 2009 February 2011
Code Name GT216 Caicos
Memory 512 MB 1024 MB
Core Speed 625 MHz 750 MHz
Memory Speed 1580 MHz 3600 MHz
Power (Max TDP) 52 watts 31 watts
Bandwidth 25280 MB/sec 28800 MB/sec
Texel Rate 10000 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 5000 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 48 160
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type DDR3 GDDR5
Bus Width 128-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 486 million 370 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, 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 number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GT 315

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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