GeForce GT 420 vs Radeon R7 370 2G

Intro

Compare all of that to the Radeon R7 370 2G, which has a core clock frequency of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 420		50 Watts
Radeon R7 370 2G		110 Watts
	Difference: 60 Watts (120%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 370 2G should be 522% quicker than the GeForce GT 420 overall, due to its greater bandwidth. (explain)

Radeon R7 370 2G		179200 MB/sec
GeForce GT 420		28800 MB/sec
	Difference: 150400 (522%)

Texel Rate

The Radeon R7 370 2G should be a lot (approximately 1014%) better at texture filtering than the GeForce GT 420. (explain)

Radeon R7 370 2G		62400 Mtexels/sec
GeForce GT 420		5600 Mtexels/sec
	Difference: 56800 (1014%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R7 370 2G is the winner, by far. (explain)

Radeon R7 370 2G		31200 Mpixels/sec
GeForce GT 420		2800 Mpixels/sec
	Difference: 28400 (1014%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.