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GeForce GTS 150 vs Radeon HD 4670 1GB

Intro

The GeForce GTS 150 makes use of a 55 nm design. nVidia has clocked the core speed at 740 MHz. The GDDR3 RAM runs at a speed of 500 MHz on this card. It features 128 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare all that to the Radeon HD 4670 1GB, which features GPU core speed of 750 MHz, and 1024 MB of GDDR4/GDDR3/DDR3/DDR2 RAM running at 1100 MHz through a 128-bit bus. It also features 320(64x5) Stream Processors, 32 TAUs, and 8 Raster Operation Units.

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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 speaking, the Radeon HD 4670 1GB should be 10% faster than the GeForce GTS 150 in general, due to its higher bandwidth. (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 a lot (more or less 97%) faster with regards to texture 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 is much (more or less 97%) faster with regards to FSAA than the Radeon HD 4670 1GB, and should be able to handle higher screen resolutions without losing too much performance. (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

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.

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 max amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics 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 amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential 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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