GeForce GTX 470 vs Radeon HD 6450 (OEM)

Intro

Compare those specifications to the Radeon HD 6450 (OEM), which comes with a clock frequency of 625 MHz and a GDDR3 memory frequency of 800 MHz. It also features a 64-bit memory bus, and makes use of a 40 nm design. It is made up of 160 SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 470		2937 points
Radeon HD 6450 (OEM)		340 points
	Difference: 2597 (764%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce GTX 470		215 Watts
	Difference: 184 Watts (594%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 should be a lot faster than the Radeon HD 6450 (OEM) overall. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 121120 (946%)

Texel Rate

The GeForce GTX 470 will be much (approximately 580%) faster with regards to texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 28992 (580%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 470 is superior to the Radeon HD 6450 (OEM), by a large margin. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 21780 (871%)

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 transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of 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 bandwidth is, the lower the ability to get to the max fill rate.