GeForce GT 450 (OEM) vs Radeon R7 240

Intro

Compare those specs to the Radeon R7 240, which uses a 28 nm design. AMD has clocked the core speed at 730 MHz. The DDR3 RAM is set to run at a frequency of 900 MHz on this specific card. It features 320 SPUs as well as 20 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
GeForce GT 450 (OEM)		106 Watts
	Difference: 76 Watts (253%)

Memory Bandwidth

Performance-wise, the GeForce GT 450 (OEM) should theoretically be quite a bit superior to the Radeon R7 240 overall. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 67200 (233%)

Texel Rate

The GeForce GT 450 (OEM) should be quite a bit (more or less 30%) faster with regards to texture filtering than the Radeon R7 240. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 4360 (30%)

Pixel Rate

The GeForce GT 450 (OEM) is quite a bit (about 225%) more effective at AA than the Radeon R7 240, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 13120 (225%)

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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum number of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.