Compare any two graphics cards:
VS

GeForce GTX 870M vs Radeon HD 3650 256MB

Intro

The GeForce GTX 870M has a GPU core speed of 941 MHz, and the 3072 MB of GDDR5 memory is set to run at 1000 MHz through a 192-bit bus. It also is made up of 1344 SPUs, 112 Texture Address Units, and 24 Raster Operation Units.

Compare all of that to the Radeon HD 3650 256MB, which features clock speeds of 725 MHz on the GPU, and 800 MHz on the 256 MB of DDR2 memory. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3650 256MB 78 Watts
GeForce GTX 870M 110 Watts
Difference: 32 Watts (41%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 870M should perform much faster than the Radeon HD 3650 256MB overall. (explain)

GeForce GTX 870M 96000 MB/sec
Radeon HD 3650 256MB 25600 MB/sec
Difference: 70400 (275%)

Texel Rate

The GeForce GTX 870M should be a lot (about 1717%) better at anisotropic filtering than the Radeon HD 3650 256MB. (explain)

GeForce GTX 870M 105392 Mtexels/sec
Radeon HD 3650 256MB 5800 Mtexels/sec
Difference: 99592 (1717%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 870M is a better choice, and very much so. (explain)

GeForce GTX 870M 22584 Mpixels/sec
Radeon HD 3650 256MB 2900 Mpixels/sec
Difference: 19684 (679%)

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

Display Prices

Hide Prices

GeForce GTX 870M

Amazon.com

Check prices at:

Radeon HD 3650 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

Display Specifications

Hide Specifications

Model GeForce GTX 870M Radeon HD 3650 256MB
Manufacturer nVidia AMD
Year March 12 2014 2008
Code Name GK104 RV635 PRO
Memory 3072 MB 256 MB
Core Speed 941 MHz 725 MHz
Memory Speed 4000 MHz 1600 MHz
Power (Max TDP) 110 watts 78 watts
Bandwidth 96000 MB/sec 25600 MB/sec
Texel Rate 105392 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 22584 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 1344 120(24x5)
Texture Mapping Units 112 8
Render Output Units 24 4
Bus Type GDDR5 DDR2
Bus Width 192-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 2.0 x16/AGP 8x
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 870M

Amazon.com

Check prices at:

Radeon HD 3650 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.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield