I get commissions for purchases made through links on this page. (more info)

Compare any two graphics cards:
VS

GeForce 8600 GT 256MB GDDR3 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce 8600 GT 256MB GDDR3 uses a 80 nm design. nVidia has clocked the core speed at 540 MHz. The GDDR3 RAM is set to run at a frequency of 700 MHz on this card. It features 32 SPUs as well as 16 Texture Address Units and 8 ROPs.

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which features a GPU core clock speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 64-bit bus. It also is comprised of 160 Stream Processors, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB 31 Watts
GeForce 8600 GT 256MB GDDR3 47 Watts
Difference: 16 Watts (52%)

Memory Bandwidth

In theory, the Radeon HD 6450 (OEM) 1GB should perform much faster than the GeForce 8600 GT 256MB GDDR3 in general. (explain)

Radeon HD 6450 (OEM) 1GB 28800 MB/sec
GeForce 8600 GT 256MB GDDR3 22400 MB/sec
Difference: 6400 (29%)

Texel Rate

The GeForce 8600 GT 256MB GDDR3 will be a lot (approximately 44%) faster with regards to texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce 8600 GT 256MB GDDR3 8640 Mtexels/sec
Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
Difference: 2640 (44%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8600 GT 256MB GDDR3 is the winner, and very much so. (explain)

GeForce 8600 GT 256MB GDDR3 4320 Mpixels/sec
Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
Difference: 1320 (44%)

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 8600 GT 256MB GDDR3

Amazon.com

Check prices at:

Radeon HD 6450 (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.

Specifications

Display Specifications

Hide Specifications

Model GeForce 8600 GT 256MB GDDR3 Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year April 2007 February 2011
Code Name G84 Caicos
Memory 256 MB 1024 MB
Core Speed 540 MHz 750 MHz
Memory Speed 1400 MHz 3600 MHz
Power (Max TDP) 47 watts 31 watts
Bandwidth 22400 MB/sec 28800 MB/sec
Texel Rate 8640 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 4320 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 32 160
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type GDDR3 GDDR5
Bus Width 128-bit 64-bit
Fab Process 80 nm 40 nm
Transistors 289 million 370 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 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, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce 8600 GT 256MB GDDR3

Amazon.com

Check prices at:

Radeon HD 6450 (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

Be the first to leave a comment!

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


*

WordPress Anti Spam by WP-SpamShield