GeForce GTX 950M vs Radeon HD 4670 1GB

Intro

Compare all of that 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 RAM runs at a frequency of 1100 MHz on this specific model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M		55 Watts
Radeon HD 4670 1GB		70 Watts
	Difference: 15 Watts (27%)

Memory Bandwidth

The Radeon HD 4670 1GB, in theory, should perform just a bit faster than the GeForce GTX 950M overall. (explain)

Radeon HD 4670 1GB		35200 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 3200 (10%)

Texel Rate

The GeForce GTX 950M will be a lot (approximately 52%) more effective at anisotropic filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 12560 (52%)

Pixel Rate

The GeForce GTX 950M should be quite a bit (approximately 144%) more effective at FSAA than the Radeon HD 4670 1GB, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 8624 (144%)

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 max amount of data (in units of MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.