Compare any two graphics cards:
VS

Radeon HD 3650 vs Radeon HD 4670 512MB

Intro

The Radeon HD 3650 comes with a GPU core speed of 725 MHz, and the 1024 MB of GDDR4 RAM runs at 800 MHz through a 128-bit bus. It also is made up of 120(24x5) Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Compare all of that to the Radeon HD 4670 512MB, which makes use of a 55 nm design. AMD has set the core speed at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM is set to run at a frequency of 1000 MHz on this model. It features 320(64x5) SPUs along with 32 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB 70 Watts
Radeon HD 3650 78 Watts
Difference: 8 Watts (11%)

Memory Bandwidth

Theoretically, the Radeon HD 4670 512MB should be much faster than the Radeon HD 3650 in general. (explain)

Radeon HD 4670 512MB 32000 MB/sec
Radeon HD 3650 25600 MB/sec
Difference: 6400 (25%)

Texel Rate

The Radeon HD 4670 512MB should be much (about 314%) better at texture filtering than the Radeon HD 3650. (explain)

Radeon HD 4670 512MB 24000 Mtexels/sec
Radeon HD 3650 5800 Mtexels/sec
Difference: 18200 (314%)

Pixel Rate

The Radeon HD 4670 512MB is a lot (approximately 107%) more effective at full screen anti-aliasing than the Radeon HD 3650, and also able to handle higher resolutions more effectively. (explain)

Radeon HD 4670 512MB 6000 Mpixels/sec
Radeon HD 3650 2900 Mpixels/sec
Difference: 3100 (107%)

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

Radeon HD 3650

Amazon.com

Check prices at:

Radeon HD 4670 512MB

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 Radeon HD 3650 Radeon HD 4670 512MB
Manufacturer AMD AMD
Year 2008 Sep 10, 2008
Code Name RV635 PRO RV730 XT
Memory 1024 MB 512 MB
Core Speed 725 MHz 750 MHz
Memory Speed 1600 MHz 2000 MHz
Power (Max TDP) 78 watts 70 watts
Bandwidth 25600 MB/sec 32000 MB/sec
Texel Rate 5800 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 120(24x5) 320(64x5)
Texture Mapping Units 8 32
Render Output Units 4 8
Bus Type GDDR4 GDDR4/GDDR3/DDR3/DDR2
Bus Width 128-bit 128-bit
Fab Process 55 nm 55 nm
Transistors (Unknown) million 514 million
Bus PCIe 2.0 x16/AGP 8x PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 3650

Amazon.com

Check prices at:

Radeon HD 4670 512MB

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