GeForce GTX 750 vs Radeon HD 6450 (OEM) 1GB

Intro

Compare all that to the Radeon HD 6450 (OEM) 1GB, which features a clock frequency of 750 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 64-bit bus, and uses a 40 nm design. It features 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTX 750		55 Watts
	Difference: 24 Watts (77%)

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should theoretically be a lot better than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 51200 (178%)

Texel Rate

The GeForce GTX 750 should be much (about 444%) faster with regards to AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 26640 (444%)

Pixel Rate

The GeForce GTX 750 will be much (about 444%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 13320 (444%)

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 (measured in megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.