GeForce GT 420 vs Radeon R7 370 2G

Intro

Compare those specs to the Radeon R7 370 2G, which uses a 28 nm design. AMD has set the core frequency at 975 MHz. The GDDR5 RAM runs at a speed of 1400 MHz on this particular card. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.

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

As far as performance goes, the Radeon R7 370 2G should in theory be quite a bit better than the GeForce GT 420 overall. (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 (about 1014%) better at AF than the GeForce GT 420. (explain)

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

Pixel Rate

The Radeon R7 370 2G will be a lot (approximately 1014%) more effective at full screen anti-aliasing than the GeForce GT 420, and should be capable of handling higher resolutions without losing too much performance. (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: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.