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GeForce GTX 460 (OEM) vs Radeon HD 4850 1GB

Intro

The GeForce GTX 460 (OEM) makes use of a 40 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR5 memory runs at a speed of 850 MHz on this card. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Compare all that to the Radeon HD 4850 1GB, which uses a 55 nm design. AMD has set the core frequency at 625 MHz. The GDDR4 RAM runs at a frequency of 993 MHz on this model. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 1GB 110 Watts
GeForce GTX 460 (OEM) 150 Watts
Difference: 40 Watts (36%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be 71% faster than the Radeon HD 4850 1GB overall, due to its higher bandwidth. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
Radeon HD 4850 1GB 63552 MB/sec
Difference: 45248 (71%)

Texel Rate

The GeForce GTX 460 (OEM) is a lot (approximately 46%) better at texture filtering than the Radeon HD 4850 1GB. (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
Radeon HD 4850 1GB 25000 Mtexels/sec
Difference: 11400 (46%)

Pixel Rate

The GeForce GTX 460 (OEM) should be a lot (more or less 108%) faster with regards to AA than the Radeon HD 4850 1GB, and also will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
Radeon HD 4850 1GB 10000 Mpixels/sec
Difference: 10800 (108%)

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 GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 4850 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

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Model GeForce GTX 460 (OEM) Radeon HD 4850 1GB
Manufacturer nVidia AMD
Year October 2010 Jun 25, 2008
Code Name GF104 RV770 PRO
Memory 1024 MB 1024 MB
Core Speed 650 MHz 625 MHz
Memory Speed 3400 MHz 1986 MHz
Power (Max TDP) 150 watts 110 watts
Bandwidth 108800 MB/sec 63552 MB/sec
Texel Rate 36400 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 336 800(160x5)
Texture Mapping Units 56 40
Render Output Units 32 16
Bus Type GDDR5 GDDR4
Bus Width 256-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 956 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 4850 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.

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