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GeForce 9500 GT DDR2 vs Radeon HD 6670 (OEM)

Intro

The GeForce 9500 GT DDR2 comes with core speeds of 550 MHz on the GPU, and 500 MHz on the 256 MB of DDR2 RAM. It features 32 SPUs as well as 16 TAUs and 8 ROPs.

Compare those specs to the Radeon HD 6670 (OEM), which features GPU core speed of 800 MHz, and 512 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 480 SPUs, 24 TAUs, and 8 Raster Operation Units.

(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

The Radeon HD 6670 (OEM) should in theory be quite a bit faster than the GeForce 9500 GT DDR2 in general. (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) is a lot (more or less 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 a high screen resolution 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

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

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: Bandwidth is the largest amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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