GeForce GTX 650 vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which comes with a core clock frequency of 650 MHz and a DDR3 memory frequency of 800 MHz. It also features a 64-bit bus, and uses a 40 nm design. It features 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 650		64 Watts
	Difference: 45 Watts (237%)

Memory Bandwidth

The GeForce GTX 650 should theoretically be quite a bit faster than the Radeon HD 5450 overall. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 67200 (525%)

Texel Rate

The GeForce GTX 650 should be a lot (more or less 551%) faster with regards to AF than the Radeon HD 5450. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 28656 (551%)

Pixel Rate

The GeForce GTX 650 is quite a bit (more or less 551%) better at full screen anti-aliasing than the Radeon HD 5450, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 14328 (551%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied 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 this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.