GeForce GT 420 vs Radeon R9 M375

Intro

Compare those specs to the Radeon R9 M375, which features core speeds of 1015 MHz on the GPU, and 1100 MHz on the 4096 MB of DDR3 memory. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M375 is 22% quicker than the GeForce GT 420 overall, because of its higher data rate. (explain)

Radeon R9 M375		35200 MB/sec
GeForce GT 420		28800 MB/sec
	Difference: 6400 (22%)

Texel Rate

The Radeon R9 M375 will be a lot (more or less 625%) better at anisotropic filtering than the GeForce GT 420. (explain)

Radeon R9 M375		40600 Mtexels/sec
GeForce GT 420		5600 Mtexels/sec
	Difference: 35000 (625%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M375 is superior to the GeForce GT 420, and very much so. (explain)

Radeon R9 M375		16240 Mpixels/sec
GeForce GT 420		2800 Mpixels/sec
	Difference: 13440 (480%)

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 information (measured in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.