GeForce GT 1030 vs Radeon HD 6770

Intro

Compare those specifications to the Radeon HD 6770, which has a core clock speed of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is comprised of 800 SPUs, 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 6770		108 Watts
	Difference: 78 Watts (260%)

Memory Bandwidth

In theory, the Radeon HD 6770 will be 37% quicker than the GeForce GT 1030 in general, because of its higher bandwidth. (explain)

Radeon HD 6770		67200 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 18048 (37%)

Texel Rate

The GeForce GT 1030 will be a bit (approximately 12%) better at AF than the Radeon HD 6770. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 4480 (12%)

Pixel Rate

The GeForce GT 1030 should be a lot (approximately 41%) faster with regards to full screen anti-aliasing than the Radeon HD 6770, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 5840 (41%)

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 over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.