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GeForce 9500 GT DDR2 vs Radeon HD 6670 (OEM)

Intro

The GeForce 9500 GT DDR2 has core clock speeds of 550 MHz on the GPU, and 500 MHz on the 256 MB of DDR2 memory. It features 32 SPUs along with 16 TAUs and 8 ROPs.

Compare those specs to the Radeon HD 6670 (OEM), which has GPU clock speed of 800 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 480 Stream Processors, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
Radeon HD 6670 (OEM) 63 Watts
Difference: 13 Watts (26%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6670 (OEM) should be 300% quicker than the GeForce 9500 GT DDR2 in general, because of its higher data rate. (explain)

Radeon HD 6670 (OEM) 64000 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 48000 (300%)

Texel Rate

The Radeon HD 6670 (OEM) will be much (approximately 118%) more effective at texture filtering than the GeForce 9500 GT DDR2. (explain)

Radeon HD 6670 (OEM) 19200 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 10400 (118%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6670 (OEM) is superior to the GeForce 9500 GT DDR2, by far. (explain)

Radeon HD 6670 (OEM) 6400 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 2000 (45%)

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

Radeon HD 6670 (OEM)

Amazon.com

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 6670 (OEM)
Manufacturer nVidia AMD
Year July 2008 February 2011
Code Name G96a Turks
Fab Process 65 nm 40 nm
Bus PCIe x16 2.0, PCI PCIe 2.1 x16
Memory 256 MB 512 MB
Core Speed 550 MHz 800 MHz
Shader Speed 1400 MHz (N/A) MHz
Memory Speed 500 MHz (1000 MHz effective) 1000 MHz (4000 MHz effective)
Unified Shaders 32 480
Texture Mapping Units 16 24
Render Output Units 8 8
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1
Power (Max TDP) 50 watts 63 watts
Shader Model 4.0 5.0
Bandwidth 16000 MB/sec 64000 MB/sec
Texel Rate 8800 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 6400 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 can be processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher 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 in one second.

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

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