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GeForce GTS 150 vs Radeon HD 3650

Intro

The GeForce GTS 150 features core clock speeds of 740 MHz on the GPU, and 500 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs along with 64 Texture Address Units and 16 ROPs.

Compare all that to the Radeon HD 3650, which uses a 55 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR4 memory works at a speed of 800 MHz on this specific model. It features 120(24x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 78 Watts
GeForce GTS 150 141 Watts
Difference: 63 Watts (81%)

Memory Bandwidth

In theory, the GeForce GTS 150 is 25% faster than the Radeon HD 3650 overall, due to its greater bandwidth. (explain)

GeForce GTS 150 32000 MB/sec
Radeon HD 3650 25600 MB/sec
Difference: 6400 (25%)

Texel Rate

The GeForce GTS 150 should be quite a bit (more or less 717%) more effective at texture filtering than the Radeon HD 3650. (explain)

GeForce GTS 150 47360 Mtexels/sec
Radeon HD 3650 5800 Mtexels/sec
Difference: 41560 (717%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTS 150 is superior to the Radeon HD 3650, by a large margin. (explain)

GeForce GTS 150 11840 Mpixels/sec
Radeon HD 3650 2900 Mpixels/sec
Difference: 8940 (308%)

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 3650

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 3650
Manufacturer nVidia AMD
Year March 10, 2009 2008
Code Name G92b RV635 PRO
Memory 1024 MB 1024 MB
Core Speed 740 MHz 725 MHz
Memory Speed 1000 MHz 1600 MHz
Power (Max TDP) 141 watts 78 watts
Bandwidth 32000 MB/sec 25600 MB/sec
Texel Rate 47360 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 11840 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 128 120(24x5)
Texture Mapping Units 64 8
Render Output Units 16 4
Bus Type GDDR3 GDDR4
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/AGP 8x
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 MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 150

Amazon.com

Check prices at:

Radeon HD 3650

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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