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Radeon HD 3650 512MB vs Radeon HD 6570 (OEM) 1GB

Intro

The Radeon HD 3650 512MB comes with clock speeds of 725 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 memory. It features 120(24x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which features a core clock speed of 650 MHz and a GDDR3 memory speed of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 3650 512MB 78 Watts
Difference: 28 Watts (56%)

Memory Bandwidth

The Radeon HD 6570 (OEM) 1GB should theoretically be a small bit faster than the Radeon HD 3650 512MB overall. (explain)

Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Radeon HD 3650 512MB 25600 MB/sec
Difference: 3200 (13%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB should be quite a bit (about 169%) faster with regards to AF than the Radeon HD 3650 512MB. (explain)

Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Radeon HD 3650 512MB 5800 Mtexels/sec
Difference: 9800 (169%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 6570 (OEM) 1GB is the winner, and very much so. (explain)

Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Radeon HD 3650 512MB 2900 Mpixels/sec
Difference: 2300 (79%)

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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Radeon HD 3650 512MB

Amazon.com

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Radeon HD 6570 (OEM) 1GB

Amazon.com

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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 Radeon HD 3650 512MB Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year 2008 February 2011
Code Name RV635 PRO Turks
Memory 512 MB 1024 MB
Core Speed 725 MHz 650 MHz
Memory Speed 1600 MHz 1800 MHz
Power (Max TDP) 78 watts 50 watts
Bandwidth 25600 MB/sec 28800 MB/sec
Texel Rate 5800 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 2900 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 120(24x5) 480
Texture Mapping Units 8 24
Render Output Units 4 8
Bus Type GDDR3 GDDR3
Bus Width 128-bit 128-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 715 million
Bus PCIe 2.0 x16/AGP 8x PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 3650 512MB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 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.

Comments

One Response to “Radeon HD 3650 512MB vs Radeon HD 6570 (OEM) 1GB”
KBlackmore says:

Here are some provisional stats for the HD 6570.

System:
CPU Intel Core i5 2400
MB Intel DH61BE
RAM 4 GB Corsair
OS Windows 7 Premium 64 Bit

3D Mark 11 Basic Edition
Score P 1208

Test 1 = 5.39 FPS
Test 2 = 5.14 FPS
Test 3 = 5.95 FPS
Test 4 = 3.19 FPS
Physics Test = 19.03 FPS

Sapphire HD 6570 Ultimate
Settings
GPU = 580 Mhz
Mem = 800 Mhz

There may be some overclocking available but didnt want to push the passive cooling.

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