Submit Benchmarks!

Submit SSD Benchmark
Submit GPU Benchmark

Compare any two graphics cards:
VS

GeForce 820M vs Radeon HD 4650 512MB

Intro

The GeForce 820M makes use of a 28 nm design. nVidia has clocked the core frequency at 719 MHz. The DDR3 RAM is set to run at a speed of 1000 MHz on this particular card. It features 96 SPUs along with 16 Texture Address Units and 4 Rasterization Operator Units.

Compare those specifications to the Radeon HD 4650 512MB, which comes with clock speeds of 600 MHz on the GPU, and 500 MHz on the 512 MB of DDR2 memory. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M 15 Watts
Radeon HD 4650 512MB 55 Watts
Difference: 40 Watts (267%)

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The Radeon HD 4650 512MB should be much (more or less 67%) better at AF than the GeForce 820M. (explain)

Radeon HD 4650 512MB 19200 Mtexels/sec
GeForce 820M 11504 Mtexels/sec
Difference: 7696 (67%)

Pixel Rate

The Radeon HD 4650 512MB should be a lot (more or less 67%) better at AA than the GeForce 820M, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 4650 512MB 4800 Mpixels/sec
GeForce 820M 2876 Mpixels/sec
Difference: 1924 (67%)

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 820M

Amazon.com

Check prices at:

Radeon HD 4650 512MB

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 820M Radeon HD 4650 512MB
Manufacturer nVidia AMD
Year February 2014 Sep 10, 2008
Code Name GF117 RV730 PRO
Memory 2048 MB 512 MB
Core Speed 719 MHz 600 MHz
Memory Speed 2000 MHz 1000 MHz
Power (Max TDP) 15 watts 55 watts
Bandwidth 16000 MB/sec 16000 MB/sec
Texel Rate 11504 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 2876 Mpixels/sec 4800 Mpixels/sec
Unified Shaders 96 320(64x5)
Texture Mapping Units 16 32
Render Output Units 4 8
Bus Type DDR3 DDR2
Bus Width 64-bit 128-bit
Fab Process 28 nm 55 nm
Transistors (Unknown) million 514 million
Bus PCIe 2.0 x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 12 DirectX 10.1
OpenGL Version OpenGL 4.5 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce 820M

Amazon.com

Check prices at:

Radeon HD 4650 512MB

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