GeForce 9800 GTX+ vs Radeon HD 4670 1GB

Intro

Compare all that to the Radeon HD 4670 1GB, which uses a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 memory runs at a frequency of 1100 MHz on this particular card. It features 320(64x5) SPUs along with 32 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB		70 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 75 Watts (107%)

Memory Bandwidth

Theoretically speaking, the GeForce 9800 GTX+ should perform quite a bit faster than the Radeon HD 4670 1GB overall. (explain)

GeForce 9800 GTX+		70400 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 35200 (100%)

Texel Rate

The GeForce 9800 GTX+ will be much (approximately 97%) faster with regards to texture filtering than the Radeon HD 4670 1GB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 23232 (97%)

Pixel Rate

The GeForce 9800 GTX+ should be a lot (approximately 97%) faster with regards to full screen anti-aliasing than the Radeon HD 4670 1GB, and should be able to handle higher resolutions more effectively. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 5808 (97%)

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 (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units of the card 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 in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.