GeForce GTS 250 1GB vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6450 (OEM) 1GB, which comes with core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 160 SPUs as well as 8 Texture Address Units and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 114 Watts (368%)

Memory Bandwidth

Performance-wise, the GeForce GTS 250 1GB should in theory be quite a bit superior to the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTS 250 1GB		70400 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 41600 (144%)

Texel Rate

The GeForce GTS 250 1GB should be much (more or less 687%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 41232 (687%)

Pixel Rate

The GeForce GTS 250 1GB is a lot (about 294%) faster with regards to full screen anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 8808 (294%)

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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at 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 write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.