GeForce GTX 280 vs Radeon HD 6450 (OEM)

Intro

Compare all of that to the Radeon HD 6450 (OEM), which uses a 40 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 RAM works at a frequency of 800 MHz on this model. It features 160 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce GTX 280		236 Watts
	Difference: 205 Watts (661%)

Memory Bandwidth

The GeForce GTX 280 should theoretically perform much faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTX 280		141696 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 128896 (1007%)

Texel Rate

The GeForce GTX 280 is much (approximately 863%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 43160 (863%)

Pixel Rate

The GeForce GTX 280 is a lot (about 671%) more effective at full screen anti-aliasing than the Radeon HD 6450 (OEM), and will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 16764 (671%)

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 information (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.