Geforce GTX 760 vs Radeon HD 4650 512MB

Intro

Compare all of that to the Radeon HD 4650 512MB, which comes with a GPU core clock speed of 600 MHz, and 512 MB of DDR2 RAM running at 500 MHz through a 128-bit bus. It also is comprised of 320(64x5) SPUs, 32 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4650 512MB		55 Watts
Geforce GTX 760		170 Watts
	Difference: 115 Watts (209%)

Memory Bandwidth

The Geforce GTX 760 should theoretically perform a lot faster than the Radeon HD 4650 512MB overall. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 4650 512MB		16000 MB/sec
	Difference: 176256 (1102%)

Texel Rate

The Geforce GTX 760 is quite a bit (about 390%) faster with regards to anisotropic filtering than the Radeon HD 4650 512MB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 4650 512MB		19200 Mtexels/sec
	Difference: 74880 (390%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 760 is the winner, and very much so. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 4650 512MB		4800 Mpixels/sec
	Difference: 26560 (553%)

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 information (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 texture map elements (texels) that can be applied 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 the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.