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GeForce GT 1030 vs Radeon HD 3850 1GB

Intro

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

Compare that to the Radeon HD 3850 1GB, which has GPU clock speed of 668 MHz, and 1024 MB of GDDR3 memory running at 828 MHz through a 256-bit bus. It also features 320(64x5) Stream Processors, 16 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 3850 1GB		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 3850 1GB should be 8% quicker than the GeForce GT 1030 overall, because of its greater data rate. (explain)

Radeon HD 3850 1GB		52992 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 3840 (8%)

Texel Rate

The GeForce GT 1030 should be much (more or less 279%) more effective at anisotropic filtering than the Radeon HD 3850 1GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 3850 1GB		10688 Mtexels/sec
	Difference: 29792 (279%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 1030 is a better choice, and very much so. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 3850 1GB		10688 Mpixels/sec
	Difference: 9552 (89%)

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

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Radeon HD 3850 1GB

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Specifications

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Model	GeForce GT 1030	Radeon HD 3850 1GB
Manufacturer	nVidia	AMD
Year	May 2017	Nov 19, 2007
Code Name	GP108-300	RV670 PRO
Memory	2048 MB	1024 MB
Core Speed	1265 MHz	668 MHz
Memory Speed	6008 MHz	1656 MHz
Power (Max TDP)	30 watts	75 watts
Bandwidth	49152 MB/sec	52992 MB/sec
Texel Rate	40480 Mtexels/sec	10688 Mtexels/sec
Pixel Rate	20240 Mpixels/sec	10688 Mpixels/sec
Unified Shaders	384	320(64x5)
Texture Mapping Units	32	16
Render Output Units	16	16
Bus Type	GDDR5	GDDR3
Bus Width	64-bit	256-bit
Fab Process	16 nm	55 nm
Transistors	3300 million	(Unknown) million
Bus	PCIe 3.0 x16	PCIe 2.0 x16/AGP 8x
DirectX Version	DirectX 12.0	DirectX 10.1
OpenGL Version	OpenGL 4.5	OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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