Radeon HD 6450 (OEM) 1GB vs Radeon R9 M290X

Intro

Compare that to the Radeon R9 M290X, which features a core clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
Radeon R9 M290X		100 Watts
	Difference: 69 Watts (223%)

Memory Bandwidth

Performance-wise, the Radeon R9 M290X should theoretically be quite a bit better than the Radeon HD 6450 (OEM) 1GB in general. (explain)

Radeon R9 M290X		153600 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 124800 (433%)

Texel Rate

The Radeon R9 M290X is much (about 1033%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon R9 M290X		68000 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 62000 (1033%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M290X is superior to the Radeon HD 6450 (OEM) 1GB, by far. (explain)

Radeon R9 M290X		27200 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 24200 (807%)

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 largest amount of data (in units of MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.