GeForce GT 1030 vs Radeon HD 4890 2GB

Intro

Compare those specifications to the Radeon HD 4890 2GB, which comes with a clock frequency of 1000 MHz and a GDDR5 memory speed of 975 MHz. It also makes use of a 256-bit bus, and uses a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4890 2GB		190 Watts
	Difference: 160 Watts (533%)

Memory Bandwidth

Theoretically, the Radeon HD 4890 2GB should perform quite a bit faster than the GeForce GT 1030 in general. (explain)

Radeon HD 4890 2GB		124800 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 75648 (154%)

Texel Rate

The GeForce GT 1030 is a little bit (more or less 1%) more effective at anisotropic filtering than the Radeon HD 4890 2GB. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4890 2GB		40000 Mtexels/sec
	Difference: 480 (1%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GT 1030 is superior to the Radeon HD 4890 2GB, by a large margin. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4890 2GB		16000 Mpixels/sec
	Difference: 4240 (27%)

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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at 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 write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.