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GeForce GTX 480 vs GeForce GTX 650

Intro

The GeForce GTX 480 comes with a GPU core clock speed of 700 MHz, and the 1536 MB of GDDR5 memory is set to run at 924 MHz through a 384-bit bus. It also is made up of 480 SPUs, 60 TAUs, and 48 ROPs.

Compare all of that to the GeForce GTX 650, which comes with core speeds of 1058 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 384 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 480 3650 points
GeForce GTX 650 2270 points
Difference: 1380 (61%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 480 250 Watts
Difference: 186 Watts (291%)

Memory Bandwidth

Performance-wise, the GeForce GTX 480 should in theory be quite a bit superior to the GeForce GTX 650 in general. (explain)

GeForce GTX 480 177408 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 97408 (122%)

Texel Rate

The GeForce GTX 480 will be quite a bit (about 24%) better at texture filtering than the GeForce GTX 650. (explain)

GeForce GTX 480 42000 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 8144 (24%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 480 is the winner, and very much so. (explain)

GeForce GTX 480 33600 Mpixels/sec
GeForce GTX 650 16928 Mpixels/sec
Difference: 16672 (98%)

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

GeForce GTX 480

GeForce GTX 650

Specifications

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Model GeForce GTX 480 GeForce GTX 650
Manufacturer nVidia nVidia
Year March 2010 September 2012
Code Name GF100 GK107
Memory 1536 MB 1024 MB
Core Speed 700 MHz 1058 MHz
Memory Speed 3696 MHz 5000 MHz
Power (Max TDP) 250 watts 64 watts
Bandwidth 177408 MB/sec 80000 MB/sec
Texel Rate 42000 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 480 384
Texture Mapping Units 60 32
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 1300 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of 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.

GeForce GTX 480

GeForce GTX 650

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