GeForce GT 1030 vs Radeon HD 4850 2GB

Intro

Compare those specs to the Radeon HD 4850 2GB, which comes with clock speeds of 625 MHz on the GPU, and 993 MHz on the 2048 MB of GDDR4 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4850 2GB		110 Watts
	Difference: 80 Watts (267%)

Memory Bandwidth

The Radeon HD 4850 2GB, in theory, should be quite a bit faster than the GeForce GT 1030 overall. (explain)

Radeon HD 4850 2GB		63552 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 14400 (29%)

Texel Rate

The GeForce GT 1030 is much (more or less 62%) faster with regards to anisotropic filtering than the Radeon HD 4850 2GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4850 2GB		25000 Mtexels/sec
	Difference: 15480 (62%)

Pixel Rate

The GeForce GT 1030 will be much (about 102%) better at anti-aliasing than the Radeon HD 4850 2GB, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4850 2GB		10000 Mpixels/sec
	Difference: 10240 (102%)

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 (in units of MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.