Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 830M vs Radeon HD 4870 1GB

Intro

The GeForce 830M uses a 28 nm design. nVidia has set the core speed at 1029 MHz. The DDR3 RAM works at a frequency of 900 MHz on this specific model. It features 256 SPUs along with 16 TAUs and 8 ROPs.

Compare all that to the Radeon HD 4870 1GB, which makes use of a 55 nm design. AMD has set the core speed at 750 MHz. The GDDR5 RAM runs at a frequency of 900 MHz on this specific card. 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 830M 25 Watts
Radeon HD 4870 1GB 150 Watts
Difference: 125 Watts (500%)

Memory Bandwidth

In theory, the Radeon HD 4870 1GB should perform quite a bit faster than the GeForce 830M in general. (explain)

Radeon HD 4870 1GB 115200 MB/sec
GeForce 830M 14400 MB/sec
Difference: 100800 (700%)

Texel Rate

The Radeon HD 4870 1GB is much (about 82%) more effective at texture filtering than the GeForce 830M. (explain)

Radeon HD 4870 1GB 30000 Mtexels/sec
GeForce 830M 16464 Mtexels/sec
Difference: 13536 (82%)

Pixel Rate

The Radeon HD 4870 1GB is a lot (more or less 46%) better at FSAA than the GeForce 830M, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 4870 1GB 12000 Mpixels/sec
GeForce 830M 8232 Mpixels/sec
Difference: 3768 (46%)

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 830M

Amazon.com

Check prices at:

Radeon HD 4870 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 830M Radeon HD 4870 1GB
Manufacturer nVidia AMD
Year March 12 2014 Jun 25, 2008
Code Name GM108 RV770 XT
Memory 2048 MB 1024 MB
Core Speed 1029 MHz 750 MHz
Memory Speed 1800 MHz 3600 MHz
Power (Max TDP) 25 watts 150 watts
Bandwidth 14400 MB/sec 115200 MB/sec
Texel Rate 16464 Mtexels/sec 30000 Mtexels/sec
Pixel Rate 8232 Mpixels/sec 12000 Mpixels/sec
Unified Shaders 256 800(160x5)
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR3 GDDR5
Bus Width 64-bit 256-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 956 million
Bus PCIe 3.0 x16 PCIe 2.0 x16
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. 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 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 potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce 830M

Amazon.com

Check prices at:

Radeon HD 4870 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