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GeForce GTS 250 1GB vs Radeon HD 6670 (OEM)

Intro

The GeForce GTS 250 1GB makes use of a 65/55 nm design. nVidia has clocked the core speed at 738 MHz. The GDDR3 RAM runs at a speed of 1100 MHz on this particular model. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

Compare those specifications to the Radeon HD 6670 (OEM), which has GPU core speed of 800 MHz, and 512 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 480 SPUs, 24 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 82 Watts (130%)

Memory Bandwidth

The GeForce GTS 250 1GB should in theory be a bit faster than the Radeon HD 6670 (OEM) overall. (explain)

GeForce GTS 250 1GB 70400 MB/sec
Radeon HD 6670 (OEM) 64000 MB/sec
Difference: 6400 (10%)

Texel Rate

The GeForce GTS 250 1GB should be a lot (about 146%) faster with regards to texture filtering than the Radeon HD 6670 (OEM). (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 28032 (146%)

Pixel Rate

The GeForce GTS 250 1GB is quite a bit (about 85%) faster with regards to AA than the Radeon HD 6670 (OEM), and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 5408 (85%)

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

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Radeon HD 6670 (OEM)

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 Radeon HD 6670 (OEM)
Manufacturer nVidia AMD
Year March 3, 2009 February 2011
Code Name G92a/b Turks
Memory 1024 MB 512 MB
Core Speed 738 MHz 800 MHz
Memory Speed 2200 MHz 4000 MHz
Power (Max TDP) 145 watts 63 watts
Bandwidth 70400 MB/sec 64000 MB/sec
Texel Rate 47232 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 128 480
Texture Mapping Units 64 24
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 715 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better 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 one second.

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

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

Radeon HD 6670 (OEM)

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.

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