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GeForce GTX 260 vs GeForce GTX 650


Intro

The GeForce GTX 260 has a clock speed of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit memory bus, and makes use of a 65 nm design. It is made up of 192 SPUs, 64 TAUs, and 28 Raster Operation Units.

Compare all that to the GeForce GTX 650, which comes with a clock speed of 1058 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTX 260 182 Watts
Difference: 118 Watts (184%)

Memory Bandwidth

The GeForce GTX 260 should in theory be a lot faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 260 111888 MB/sec
GeForce GTX 650 80000 MB/sec
Difference: 31888 (40%)

Texel Rate

The GeForce GTX 260 should be a small bit (about 9%) faster with regards to anisotropic filtering than the GeForce GTX 650. (explain)

GeForce GTX 260 36864 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 3008 (9%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 650 is superior to the GeForce GTX 260, though not by far. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GTX 260 16128 Mpixels/sec
Difference: 800 (5%)

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 260

GeForce GTX 650

Specifications

Display Specifications

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Model GeForce GTX 260 GeForce GTX 650
Manufacturer nVidia nVidia
Year June 16, 2008 September 2012
Code Name G200 GK107
Memory 896 MB 1024 MB
Core Speed 576 MHz 1058 MHz
Memory Speed 1998 MHz 5000 MHz
Power (Max TDP) 182 watts 64 watts
Bandwidth 111888 MB/sec 80000 MB/sec
Texel Rate 36864 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 192 384
Texture Mapping Units 64 32
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 1400 million 1300 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum 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 the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

GeForce GTX 260

GeForce GTX 650

Comments

4 Responses to “GeForce GTX 260 vs GeForce GTX 650”
randy says:

The GTX 260 is essentially the same as GTX 650, the advantage the GTX 650 has is Directx 11

SeriousJ says:

Looking at the gtx 650's power consumption, this has to be a very effective card for casual gaming deliviering 260's performance. (+directx 11.1)

PAul says:

lol 650 for lyfe!

Dark_Razar says:

Pros e cons of the two cards:

GTX 260:
- It is faster in general.
- A lot more Cheaper than the GTX 650 (You can save more than 60$).

GTX 650
- DirectX 11.
- Less Power Consuption.

It's not a real comparison, just because the GTX 260 is pretty old... But it's still a good graphic card.

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