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GeForce 9500 GT DDR2 vs Radeon HD 5670

Intro

The GeForce 9500 GT DDR2 makes use of a 65 nm design. nVidia has set the core frequency at 550 MHz. The DDR2 RAM runs at a speed of 500 MHz on this card. It features 32 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare that to the Radeon HD 5670, which has a clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is comprised of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
Radeon HD 5670 61 Watts
Difference: 11 Watts (22%)

Memory Bandwidth

In theory, the Radeon HD 5670 should be 300% quicker than the GeForce 9500 GT DDR2 overall, because of its higher bandwidth. (explain)

Radeon HD 5670 64000 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 48000 (300%)

Texel Rate

The Radeon HD 5670 is quite a bit (approximately 76%) more effective at AF than the GeForce 9500 GT DDR2. (explain)

Radeon HD 5670 15500 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 6700 (76%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5670 is the winner, by a large margin. (explain)

Radeon HD 5670 6200 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 1800 (41%)

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 9500 GT DDR2

Amazon.com

Check prices at:

Radeon HD 5670

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 9500 GT DDR2 Radeon HD 5670
Manufacturer nVidia AMD
Year July 2008 January 14, 2010
Code Name G96a Redwood XT
Memory 256 MB 1024 MB
Core Speed 550 MHz 775 MHz
Memory Speed 1000 MHz 4000 MHz
Power (Max TDP) 50 watts 61 watts
Bandwidth 16000 MB/sec 64000 MB/sec
Texel Rate 8800 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 32 400(80x5)
Texture Mapping Units 16 20
Render Output Units 8 8
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 65 nm 40 nm
Transistors 314 million 627 million
Bus PCIe x16 2.0, PCI PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9500 GT DDR2

Amazon.com

Check prices at:

Radeon HD 5670

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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