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GeForce GTX 260 vs GeForce GTX 650

Intro

The GeForce GTX 260 makes use of a 65 nm design. nVidia has set the core frequency at 576 MHz. The GDDR3 RAM runs at a speed of 999 MHz on this particular card. It features 192 SPUs along with 64 Texture Address Units and 28 ROPs.

Compare that to the GeForce GTX 650, which comes with clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

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

Theoretically speaking, the GeForce GTX 260 should be 40% faster than the GeForce GTX 650 in general, because of its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 260 should be just a bit (approximately 9%) more effective at texture filtering than the GeForce GTX 650. (explain)

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

Pixel Rate

The GeForce GTX 650 is a bit (about 5%) more effective at AA than the GeForce GTX 260, and will be able to handle higher resolutions without slowing down too much. (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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 260

Amazon.com

Other US-based stores

GeForce GTX 650

Amazon.com

Other US-based stores

Specifications

Model GeForce GTX 260 GeForce GTX 650
Manufacturer nVidia nVidia
Year June 16, 2008 September 2012
Code Name G200 GK107
Fab Process 65 nm 28 nm
Bus PCIe x16 2.0 PCIe 3.0 x16
Memory 896 MB 2048 MB
Core Speed 576 MHz 1058 MHz
Shader Speed 1242 MHz 1058 MHz
Memory Speed 999 MHz (1998 MHz effective) 1250 MHz (5000 MHz effective)
Unified Shaders 192 384
Texture Mapping Units 64 32
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 128-bit
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.1 OpenGL 4.3
Power (Max TDP) 182 watts 64 watts
Shader Model 4.0 5.0
Bandwidth 111888 MB/sec 80000 MB/sec
Texel Rate 36864 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 16928 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

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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