GeForce GTX 460 2GB vs Radeon HD 6450 (OEM) 1GB

Intro

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which features core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 160 SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 129 Watts (416%)

Memory Bandwidth

In theory, the GeForce GTX 460 2GB should be a lot faster than the Radeon HD 6450 (OEM) 1GB in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 86400 (300%)

Texel Rate

The GeForce GTX 460 2GB will be quite a bit (more or less 530%) better at AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 31800 (530%)

Pixel Rate

The GeForce GTX 460 2GB will be a lot (approximately 620%) better at full screen anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 18600 (620%)

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 (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. 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 card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 maximum number of pixels the video card could 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.