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GeForce 9600 GT 512MB vs Radeon HD 6670 (OEM) 1GB

Intro

The GeForce 9600 GT 512MB comes with a GPU core clock speed of 650 MHz, and the 512 MB of GDDR3 RAM is set to run at 900 MHz through a 256-bit bus. It also is made up of 64 Stream Processors, 32 TAUs, and 16 ROPs.

Compare those specs to the Radeon HD 6670 (OEM) 1GB, which has core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB 63 Watts
GeForce 9600 GT 512MB 95 Watts
Difference: 32 Watts (51%)

Memory Bandwidth

The Radeon HD 6670 (OEM) 1GB should theoretically be a bit faster than the GeForce 9600 GT 512MB overall. (explain)

Radeon HD 6670 (OEM) 1GB 64000 MB/sec
GeForce 9600 GT 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The GeForce 9600 GT 512MB is a small bit (more or less 8%) better at AF than the Radeon HD 6670 (OEM) 1GB. (explain)

GeForce 9600 GT 512MB 20800 Mtexels/sec
Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
Difference: 1600 (8%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce 9600 GT 512MB is superior to the Radeon HD 6670 (OEM) 1GB, and very much so. (explain)

GeForce 9600 GT 512MB 10400 Mpixels/sec
Radeon HD 6670 (OEM) 1GB 6400 Mpixels/sec
Difference: 4000 (63%)

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 9600 GT 512MB

Amazon.com

Radeon HD 6670 (OEM) 1GB

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 9600 GT 512MB Radeon HD 6670 (OEM) 1GB
Manufacturer nVidia AMD
Year Feb 2008 February 2011
Code Name G94a/b Turks
Fab Process 65/55 nm 40 nm
Bus PCIe x16 2.0 PCIe 2.1 x16
Memory 512 MB 1024 MB
Core Speed 650 MHz 800 MHz
Shader Speed 1625 MHz (N/A) MHz
Memory Speed 900 MHz (1800 MHz effective) 1000 MHz (4000 MHz effective)
Unified Shaders 64 480
Texture Mapping Units 32 24
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1
Power (Max TDP) 95 watts 63 watts
Shader Model 4.0 5.0
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 20800 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 10400 Mpixels/sec 6400 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 again. If 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 texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

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