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GeForce GTX 465 vs Radeon HD 4870 X2

Intro

The GeForce GTX 465 comes with core clock speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs along with 44 Texture Address Units and 32 ROPs.

Compare that to the Radeon HD 4870 X2, which comes with GPU core speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465 200 Watts
Radeon HD 4870 X2 350 Watts
Difference: 150 Watts (75%)

Memory Bandwidth

Performance-wise, the Radeon HD 4870 X2 should in theory be quite a bit better than the GeForce GTX 465 overall. (explain)

Radeon HD 4870 X2 230400 MB/sec
GeForce GTX 465 102592 MB/sec
Difference: 127808 (125%)

Texel Rate

The Radeon HD 4870 X2 is much (more or less 125%) faster with regards to AF than the GeForce GTX 465. (explain)

Radeon HD 4870 X2 60000 Mtexels/sec
GeForce GTX 465 26708 Mtexels/sec
Difference: 33292 (125%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 4870 X2 is a better choice, by far. (explain)

Radeon HD 4870 X2 24000 Mpixels/sec
GeForce GTX 465 19424 Mpixels/sec
Difference: 4576 (24%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 465

Amazon.com

Check prices at:

Radeon HD 4870 X2

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 465 Radeon HD 4870 X2
Manufacturer nVidia AMD
Year May 2010 Aug 12, 2008
Code Name GF100 R700
Memory 1024 MB 1024 MB (x2)
Core Speed 607 MHz 750 MHz (x2)
Memory Speed 3208 MHz 3600 MHz (x2)
Power (Max TDP) 200 watts 350 watts
Bandwidth 102592 MB/sec 230400 MB/sec
Texel Rate 26708 Mtexels/sec 60000 Mtexels/sec
Pixel Rate 19424 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 352 800(160x5) (x2)
Texture Mapping Units 44 40 (x2)
Render Output Units 32 16 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit (x2)
Fab Process 40 nm 55 nm
Transistors 3000 million 956 million
Bus PCIe x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 465

Amazon.com

Check prices at:

Radeon HD 4870 X2

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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