GeForce GT 440 1.5GB vs Radeon HD 4670 1GB

Intro

Compare those specs to the Radeon HD 4670 1GB, which uses a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 memory works at a speed of 1100 MHz on this specific model. It features 320(64x5) SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 4670 1GB		70 Watts
	Difference: 14 Watts (25%)

Memory Bandwidth

Performance-wise, the GeForce GT 440 1.5GB should in theory be much superior to the Radeon HD 4670 1GB overall. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 8000 (23%)

Texel Rate

The Radeon HD 4670 1GB is much (more or less 68%) faster with regards to AF than the GeForce GT 440 1.5GB. (explain)

Radeon HD 4670 1GB		24000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 9744 (68%)

Pixel Rate

The GeForce GT 440 1.5GB will be quite a bit (approximately 138%) better at FSAA than the Radeon HD 4670 1GB, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 8256 (138%)

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 (in units of MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.