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GeForce GTS 150 vs Radeon HD 3470 256MB

Intro

The GeForce GTS 150 uses a 55 nm design. nVidia has clocked the core frequency at 740 MHz. The GDDR3 memory works at a frequency of 500 MHz on this particular card. It features 128 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 3470 256MB, which features GPU clock speed of 800 MHz, and 256 MB of DDR2 memory running at 950 MHz through a 128-bit bus. It also features 40(8x5) SPUs, 4 Texture Address Units, and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTS 150 is 5% faster than the Radeon HD 3470 256MB overall, because of its greater data rate. (explain)

GeForce GTS 150 32000 MB/sec
Radeon HD 3470 256MB 30400 MB/sec
Difference: 1600 (5%)

Texel Rate

The GeForce GTS 150 should be a lot (more or less 1380%) better at anisotropic filtering than the Radeon HD 3470 256MB. (explain)

GeForce GTS 150 47360 Mtexels/sec
Radeon HD 3470 256MB 3200 Mtexels/sec
Difference: 44160 (1380%)

Pixel Rate

The GeForce GTS 150 will be much (more or less 270%) more effective at FSAA than the Radeon HD 3470 256MB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTS 150 11840 Mpixels/sec
Radeon HD 3470 256MB 3200 Mpixels/sec
Difference: 8640 (270%)

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 3470 256MB

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 3470 256MB
Manufacturer nVidia AMD
Year March 10, 2009 2008
Code Name G92b RV620 PRO
Memory 1024 MB 256 MB
Core Speed 740 MHz 800 MHz
Memory Speed 1000 MHz 1900 MHz
Power (Max TDP) 141 watts (Unknown) watts
Bandwidth 32000 MB/sec 30400 MB/sec
Texel Rate 47360 Mtexels/sec 3200 Mtexels/sec
Pixel Rate 11840 Mpixels/sec 3200 Mpixels/sec
Unified Shaders 128 40(8x5)
Texture Mapping Units 64 4
Render Output Units 16 4
Bus Type GDDR3 DDR2
Bus Width 256-bit 128-bit
Fab Process 55 nm 55 nm
Transistors 754 million (Unknown) million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - 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 3470 256MB

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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