Radeon HD 4550 512MB vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which features a clock frequency of 730 MHz and a DDR3 memory speed of 900 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 320 SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
Radeon R7 240		30 Watts
	Difference: 5 Watts (20%)

Memory Bandwidth

As far as performance goes, the Radeon R7 240 should theoretically be quite a bit better than the Radeon HD 4550 512MB overall. (explain)

Radeon R7 240		28800 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 16000 (125%)

Texel Rate

The Radeon R7 240 will be much (about 204%) faster with regards to AF than the Radeon HD 4550 512MB. (explain)

Radeon R7 240		14600 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 9800 (204%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R7 240 is the winner, by a large margin. (explain)

Radeon R7 240		5840 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 3440 (143%)

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 data (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This number is calculated 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.