GeForce GT 1030 vs Radeon HD 4750

Intro

Compare all that to the Radeon HD 4750, which makes use of a 40 nm design. AMD has set the core frequency at 730 MHz. The GDDR5 RAM runs at a speed of 800 MHz on this specific model. It features 640(128x5) SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 1030		30 Watts
Radeon HD 4750		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

Performance-wise, the Radeon HD 4750 should theoretically be a bit superior to the GeForce GT 1030 in general. (explain)

Radeon HD 4750		51200 MB/sec
GeForce GT 1030		49152 MB/sec
	Difference: 2048 (4%)

Texel Rate

The GeForce GT 1030 will be quite a bit (about 73%) faster with regards to texture filtering than the Radeon HD 4750. (explain)

GeForce GT 1030		40480 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 17120 (73%)

Pixel Rate

The GeForce GT 1030 should be quite a bit (about 73%) more effective at full screen anti-aliasing than the Radeon HD 4750, and also able to handle higher resolutions without losing too much performance. (explain)

GeForce GT 1030		20240 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 8560 (73%)

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 (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling 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 that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.