Compare any two graphics cards:
Radeon HD 5450 vs Radeon HD 6450 (OEM) 1GB
IntroThe Radeon HD 5450 makes use of a 40 nm design. AMD has set the core speed at 650 MHz. The DDR3 memory runs at a speed of 800 MHz on this card. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 ROPs.Compare all of that to the Radeon HD 6450 (OEM) 1GB, which has core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 160 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.
Display Graphs
Power Usage and Theoretical BenchmarksPower Consumption (Max TDP)
Memory BandwidthPerformance-wise, the Radeon HD 6450 (OEM) 1GB should theoretically be quite a bit superior to the Radeon HD 5450 overall. (explain)
Texel RateThe Radeon HD 6450 (OEM) 1GB will be a little bit (approximately 15%) faster with regards to texture filtering than the Radeon HD 5450. (explain)
Pixel RateThe Radeon HD 6450 (OEM) 1GB should be just a bit (approximately 15%) faster with regards to full screen anti-aliasing than the Radeon HD 5450, and also should be capable of handling higher screen resolutions more effectively. (explain)
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
Display Prices
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
Display Specifications
Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions. Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs 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 output rate also depends on lots of 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
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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Comments
6 Responses to “Radeon HD 5450 vs Radeon HD 6450 (OEM) 1GB”[...] [...]
the HD 5450 is a very good HTPC card. i added one to a tiny emachines pc, swapped in a blu ray player and that little machine is a movie monster. i do not play games on it so i dunno how games work on it.
I wonder why the actual performance difference in pixel/texel rate isn't that big as the difference in memory bandwith suggests.
I wonder why the actual performance difference in pixel/texel rate isn't that big as the difference in memory bandwidth suggests.
@Mentor54 - I doubt you'll see this, but --> The reason the real world differences aren't huge is simple. The memory bandwidth is a lot higher, but the actual core isn't pushing out much more.
if I install a 6450, do I need to upgrade the power supply?