GeForce GT 1030 vs Radeon HD 4850 1GB

Intro

Compare all of that to the Radeon HD 4850 1GB, which comes with a core clock speed of 625 MHz and a GDDR4 memory speed of 993 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4850 1GB		110 Watts
	Difference: 80 Watts (267%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4850 1GB should be 29% faster than the GeForce GT 1030 in general, due to its greater bandwidth. (explain)

Radeon HD 4850 1GB		63552 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 14400 (29%)

Texel Rate

The GeForce GT 1030 will be quite a bit (about 62%) more effective at AF than the Radeon HD 4850 1GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4850 1GB		25000 Mtexels/sec
	Difference: 15480 (62%)

Pixel Rate

The GeForce GT 1030 should be a lot (approximately 102%) faster with regards to FSAA than the Radeon HD 4850 1GB, and also should be able to handle higher resolutions more effectively. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4850 1GB		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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.