GeForce GTS 150 vs Radeon HD 6670 (OEM)

Intro

Compare those specs to the Radeon HD 6670 (OEM), which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this specific card. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce GTS 150		141 Watts
	Difference: 78 Watts (124%)

Memory Bandwidth

Theoretically, the Radeon HD 6670 (OEM) should be a lot faster than the GeForce GTS 150 in general. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 32000 (100%)

Texel Rate

The GeForce GTS 150 is quite a bit (about 147%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)

GeForce GTS 150		47360 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 28160 (147%)

Pixel Rate

The GeForce GTS 150 should be much (approximately 85%) more effective at FSAA than the Radeon HD 6670 (OEM), and also should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTS 150		11840 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 5440 (85%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated 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 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 could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.