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GeForce GTS 150 vs Radeon HD 4670 1GB

Intro

The GeForce GTS 150 has a GPU core clock speed of 740 MHz, and the 1024 MB of GDDR3 RAM runs at 500 MHz through a 256-bit bus. It also features 128 Stream Processors, 64 TAUs, and 16 ROPs.

Compare all of that to the Radeon HD 4670 1GB, which features core speeds of 750 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM. It features 320(64x5) SPUs along with 32 TAUs and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 1GB 70 Watts
GeForce GTS 150 141 Watts
Difference: 71 Watts (101%)

Memory Bandwidth

Theoretically, the Radeon HD 4670 1GB should be just a bit faster than the GeForce GTS 150 in general. (explain)

Radeon HD 4670 1GB 35200 MB/sec
GeForce GTS 150 32000 MB/sec
Difference: 3200 (10%)

Texel Rate

The GeForce GTS 150 will be much (more or less 97%) more effective at anisotropic filtering than the Radeon HD 4670 1GB. (explain)

GeForce GTS 150 47360 Mtexels/sec
Radeon HD 4670 1GB 24000 Mtexels/sec
Difference: 23360 (97%)

Pixel Rate

The GeForce GTS 150 should be quite a bit (more or less 97%) faster with regards to anti-aliasing than the Radeon HD 4670 1GB, and able to handle higher screen resolutions better. (explain)

GeForce GTS 150 11840 Mpixels/sec
Radeon HD 4670 1GB 6000 Mpixels/sec
Difference: 5840 (97%)

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 150

Amazon.com

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Radeon HD 4670 1GB

Amazon.com

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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 150 Radeon HD 4670 1GB
Manufacturer nVidia AMD
Year March 10, 2009 Sep 10, 2008
Code Name G92b RV730 XT
Memory 1024 MB 1024 MB
Core Speed 740 MHz 750 MHz
Memory Speed 1000 MHz 2200 MHz
Power (Max TDP) 141 watts 70 watts
Bandwidth 32000 MB/sec 35200 MB/sec
Texel Rate 47360 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 11840 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 128 320(64x5)
Texture Mapping Units 64 32
Render Output Units 16 8
Bus Type GDDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 256-bit 128-bit
Fab Process 55 nm 55 nm
Transistors 754 million 514 million
Bus PCIe x16 2.0 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, 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 write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTS 150

Amazon.com

Check prices at:

Radeon HD 4670 1GB

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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