Compare any two graphics cards:
Radeon HD 5450 vs Radeon HD 6450 (OEM) 1GB
IntroThe Radeon HD 5450 has core speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 ROPs.
Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which features GPU core speed of 750 MHz, and 1024 MB of GDDR5 RAM running at 900 MHz through a 64-bit bus. It also features 160 Stream Processors, 8 Texture Address Units, and 4 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Performance-wise, the Radeon HD 6450 (OEM) 1GB should in theory be quite a bit better than the Radeon HD 5450 in general. (explain)
Texel RateThe Radeon HD 6450 (OEM) 1GB is a small bit (about 15%) better at anisotropic filtering than the Radeon HD 5450. (explain)
Pixel RateThe Radeon HD 6450 (OEM) 1GB is just a bit (approximately 15%) more effective at FSAA than the Radeon HD 5450, and will be able to handle higher resolutions better. (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.
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.
Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.