GeForce GTX 580 vs Radeon HD 6450 (OEM)

Intro

Compare that to the Radeon HD 6450 (OEM), which has a clock speed of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also makes use of a 64-bit bus, and uses a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 580		4956 points
Radeon HD 6450 (OEM)		340 points
	Difference: 4616 (1358%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce GTX 580		244 Watts
	Difference: 213 Watts (687%)

Memory Bandwidth

The GeForce GTX 580, in theory, should be much faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTX 580		192384 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 179584 (1403%)

Texel Rate

The GeForce GTX 580 is quite a bit (more or less 888%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 580		49408 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 44408 (888%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 580 is superior to the Radeon HD 6450 (OEM), by far. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 34556 (1382%)

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: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the 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 number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.