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GeForce GTS 250 1GB vs GeForce GTX 650

Intro

The GeForce GTS 250 1GB has a GPU clock speed of 738 MHz, and the 1024 MB of GDDR3 memory is set to run at 1100 MHz through a 256-bit bus. It also is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare those specifications to the GeForce GTX 650, which makes use of a 28 nm design. nVidia has clocked the core speed at 1058 MHz. The GDDR5 RAM works at a frequency of 1250 MHz on this particular card. It features 384 SPUs along with 32 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 81 Watts (127%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 should in theory be a little bit superior to the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 650 80000 MB/sec
GeForce GTS 250 1GB 70400 MB/sec
Difference: 9600 (14%)

Texel Rate

The GeForce GTS 250 1GB will be a lot (about 40%) more effective at texture filtering than the GeForce GTX 650. (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 13376 (40%)

Pixel Rate

The GeForce GTX 650 is much (more or less 43%) better at AA than the GeForce GTS 250 1GB, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 650 16928 Mpixels/sec
GeForce GTS 250 1GB 11808 Mpixels/sec
Difference: 5120 (43%)

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

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GeForce GTS 250 1GB

Amazon.com

Check prices at:

GeForce GTX 650

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTS 250 1GB GeForce GTX 650
Manufacturer nVidia nVidia
Year March 3, 2009 September 2012
Code Name G92a/b GK107
Memory 1024 MB 1024 MB
Core Speed 738 MHz 1058 MHz
Memory Speed 2200 MHz 5000 MHz
Power (Max TDP) 145 watts 64 watts
Bandwidth 70400 MB/sec 80000 MB/sec
Texel Rate 47232 Mtexels/sec 33856 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 16928 Mpixels/sec
Unified Shaders 128 384
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 28 nm
Transistors 754 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 largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock 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 rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

GeForce GTX 650

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

One Response to “GeForce GTS 250 1GB vs GeForce GTX 650”
kneegrow says:

lol@blank prices

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