Compare any two graphics cards:
VS

GeForce GTX 880M vs Radeon HD 4850 X2 1GB

Intro

The GeForce GTX 880M uses a 28 nm design. nVidia has set the core frequency at 954 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular model. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon HD 4850 X2 1GB, which makes use of a 55 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 memory works at a frequency of 993 MHz on this model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M 130 Watts
Radeon HD 4850 X2 1GB 250 Watts
Difference: 120 Watts (92%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should theoretically be a little bit better than the Radeon HD 4850 X2 1GB overall. (explain)

GeForce GTX 880M 128000 MB/sec
Radeon HD 4850 X2 1GB 127104 MB/sec
Difference: 896 (1%)

Texel Rate

The GeForce GTX 880M is quite a bit (about 144%) faster with regards to anisotropic filtering than the Radeon HD 4850 X2 1GB. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 4850 X2 1GB 50000 Mtexels/sec
Difference: 72112 (144%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 880M is the winner, by far. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 4850 X2 1GB 20000 Mpixels/sec
Difference: 10528 (53%)

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

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 4850 X2 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 GTX 880M Radeon HD 4850 X2 1GB
Manufacturer nVidia AMD
Year March 12 2014 Nov 7, 2008
Code Name GK104 R700
Memory 4096 MB 1024 MB (x2)
Core Speed 954 MHz 625 MHz (x2)
Memory Speed 4000 MHz 1986 MHz (x2)
Power (Max TDP) 130 watts 250 watts
Bandwidth 128000 MB/sec 127104 MB/sec
Texel Rate 122112 Mtexels/sec 50000 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 20000 Mpixels/sec
Unified Shaders 1536 800(160x5) (x2)
Texture Mapping Units 128 40 (x2)
Render Output Units 32 16 (x2)
Bus Type GDDR5 GDDR3
Bus Width 256-bit 256-bit (x2)
Fab Process 28 nm 55 nm
Transistors (Unknown) million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16 (PCIe bridge)
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 4850 X2 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