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GeForce GTX 460 SE vs Radeon HD 7850

Intro

The GeForce GTX 460 SE uses a 40 nm design. nVidia has clocked the core frequency at 650 MHz. The GDDR5 RAM is set to run at a frequency of 850 MHz on this particular model. It features 288 SPUs as well as 48 Texture Address Units and 32 ROPs.

Compare those specs to the Radeon HD 7850, which comes with core clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1024 SPUs as well as 64 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
GeForce GTX 460 SE 150 Watts
Difference: 20 Watts (15%)

Memory Bandwidth

The Radeon HD 7850 should theoretically be a lot faster than the GeForce GTX 460 SE in general. (explain)

Radeon HD 7850 153600 MB/sec
GeForce GTX 460 SE 108800 MB/sec
Difference: 44800 (41%)

Texel Rate

The Radeon HD 7850 is much (more or less 76%) more effective at texture filtering than the GeForce GTX 460 SE. (explain)

Radeon HD 7850 55040 Mtexels/sec
GeForce GTX 460 SE 31200 Mtexels/sec
Difference: 23840 (76%)

Pixel Rate

The Radeon HD 7850 is much (about 32%) faster with regards to FSAA than the GeForce GTX 460 SE, and will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 7850 27520 Mpixels/sec
GeForce GTX 460 SE 20800 Mpixels/sec
Difference: 6720 (32%)

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 SE

Amazon.com

Check prices at:

Radeon HD 7850

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 SE Radeon HD 7850
Manufacturer nVidia AMD
Year November 2010 March 2012
Code Name GF104 Pitcairn Pro
Memory 1024 MB 2048 MB
Core Speed 650 MHz 860 MHz
Memory Speed 3400 MHz 4800 MHz
Power (Max TDP) 150 watts 130 watts
Bandwidth 108800 MB/sec 153600 MB/sec
Texel Rate 31200 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 288 1024
Texture Mapping Units 48 64
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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 output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 460 SE

Amazon.com

Check prices at:

Radeon HD 7850

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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