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GeForce GT 1030 vs GeForce GT 420

Intro

The GeForce GT 1030 has core clock speeds of 1265 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs as well as 32 Texture Address Units and 16 ROPs.

Compare all of that to the GeForce GT 420, which has GPU clock speed of 700 MHz, and 2048 MB of GDDR3 memory set to run at 900 MHz through a 128-bit bus. It also is comprised of 48 Stream Processors, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030 30 Watts
GeForce GT 420 50 Watts
Difference: 20 Watts (67%)

Memory Bandwidth

Theoretically, the GeForce GT 1030 should be quite a bit faster than the GeForce GT 420 overall. (explain)

GeForce GT 1030 49152 MB/sec
GeForce GT 420 28800 MB/sec
Difference: 20352 (71%)

Texel Rate

The GeForce GT 1030 will be a lot (about 623%) better at AF than the GeForce GT 420. (explain)

GeForce GT 1030 40480 Mtexels/sec
GeForce GT 420 5600 Mtexels/sec
Difference: 34880 (623%)

Pixel Rate

The GeForce GT 1030 is a lot (more or less 623%) more effective at AA than the GeForce GT 420, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GT 1030 20240 Mpixels/sec
GeForce GT 420 2800 Mpixels/sec
Difference: 17440 (623%)

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

Display Prices

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GeForce GT 1030

Amazon.com

GeForce GT 420

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

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Model GeForce GT 1030 GeForce GT 420
Manufacturer nVidia nVidia
Year May 2017 September 2010
Code Name GP108-300 GF108
Memory 2048 MB 2048 MB
Core Speed 1265 MHz 700 MHz
Memory Speed 6008 MHz 1800 MHz
Power (Max TDP) 30 watts 50 watts
Bandwidth 49152 MB/sec 28800 MB/sec
Texel Rate 40480 Mtexels/sec 5600 Mtexels/sec
Pixel Rate 20240 Mpixels/sec 2800 Mpixels/sec
Unified Shaders 384 48
Texture Mapping Units 32 8
Render Output Units 16 4
Bus Type GDDR5 GDDR3
Bus Width 64-bit 128-bit
Fab Process 16 nm 40 nm
Transistors 3300 million 585 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12.0 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 1030

Amazon.com

GeForce GT 420

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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