GeForce GTX 580 vs Radeon HD 6450 (OEM)

Intro

Compare all of that to the Radeon HD 6450 (OEM), which makes use of a 40 nm design. AMD has clocked the core frequency at 625 MHz. The GDDR3 RAM is set to run at a speed of 800 MHz on this particular model. It features 160 SPUs as well as 8 Texture Address Units and 4 ROPs.

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

As far as performance goes, the GeForce GTX 580 should theoretically be a lot better than the Radeon HD 6450 (OEM) overall. (explain)

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

Texel Rate

The GeForce GTX 580 will be quite a bit (approximately 888%) faster with regards to 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

The GeForce GTX 580 will be a lot (more or less 1382%) more effective at full screen anti-aliasing than the Radeon HD 6450 (OEM), and also will be able to handle higher screen resolutions without slowing down too much. (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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.