GeForce GT 340 vs Radeon HD 6670 (OEM)

Intro

Compare those specifications to the Radeon HD 6670 (OEM), which features core speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 RAM. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
GeForce GT 340		69 Watts
	Difference: 6 Watts (10%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) is 18% quicker than the GeForce GT 340 in general, due to its higher data rate. (explain)

Radeon HD 6670 (OEM)		64000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 9600 (18%)

Texel Rate

The Radeon HD 6670 (OEM) is a small bit (approximately 9%) better at anisotropic filtering than the GeForce GT 340. (explain)

Radeon HD 6670 (OEM)		19200 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 1600 (9%)

Pixel Rate

The Radeon HD 6670 (OEM) is quite a bit (about 45%) more effective at FSAA than the GeForce GT 340, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 6670 (OEM)		6400 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 2000 (45%)

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 across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.