GeForce GTX 965M vs Radeon HD 4670 1GB

Intro

Compare those specs to the Radeon HD 4670 1GB, which comes with GPU clock speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM set to run at 1100 MHz through a 128-bit bus. It also is comprised of 320(64x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M		60 Watts
Radeon HD 4670 1GB		70 Watts
	Difference: 10 Watts (17%)

Memory Bandwidth

In theory, the GeForce GTX 965M should be quite a bit faster than the Radeon HD 4670 1GB in general. (explain)

GeForce GTX 965M		64000 MB/sec
Radeon HD 4670 1GB		35200 MB/sec
	Difference: 28800 (82%)

Texel Rate

The GeForce GTX 965M will be much (more or less 152%) better at AF than the Radeon HD 4670 1GB. (explain)

GeForce GTX 965M		60416 Mtexels/sec
Radeon HD 4670 1GB		24000 Mtexels/sec
	Difference: 36416 (152%)

Pixel Rate

The GeForce GTX 965M is a lot (approximately 403%) better at AA than the Radeon HD 4670 1GB, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 965M		30208 Mpixels/sec
Radeon HD 4670 1GB		6000 Mpixels/sec
	Difference: 24208 (403%)

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 max amount of information (in units of megabytes 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. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.