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GeForce GT 1030 vs GeForce GT 420

Intro

The GeForce GT 1030 features a core clock speed of 1265 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 64-bit bus, and makes use of a 16 nm design. It is made up of 384 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

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

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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

The GeForce GT 1030 should in theory 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 (more or less 623%) better at texture filtering than the GeForce GT 420. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce GT 1030 is a better choice, by a large margin. (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

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GeForce GT 1030

Amazon.com

Check prices at:

GeForce GT 420

Amazon.com

Check prices at:

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

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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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 applied in one second. This is calculated by multiplying the total amount of texture units 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 maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GT 1030

Amazon.com

Check prices at:

GeForce GT 420

Amazon.com

Check prices at:

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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