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GeForce GTX 650 vs Radeon HD 7770

Intro

The GeForce GTX 650 features core clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 384 SPUs along with 32 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7770, which makes use of a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this specific card. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 64 Watts
Radeon HD 7770 80 Watts
Difference: 16 Watts (25%)

Memory Bandwidth

The GeForce GTX 650 should in theory perform a small bit faster than the Radeon HD 7770 overall. (explain)

GeForce GTX 650 80000 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 8000 (11%)

Texel Rate

The Radeon HD 7770 is a small bit (more or less 18%) better at anisotropic filtering than the GeForce GTX 650. (explain)

Radeon HD 7770 40000 Mtexels/sec
GeForce GTX 650 33856 Mtexels/sec
Difference: 6144 (18%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 650 is a better choice, though only just barely. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon HD 7770 16000 Mpixels/sec
Difference: 928 (6%)

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 650

Amazon.com

Radeon HD 7770

Amazon.com

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 650 Radeon HD 7770
Manufacturer nVidia AMD
Year September 2012 February 2012
Code Name GK107 Cape Verde XT
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 1024 MB
Core Speed 1058 MHz 1000 MHz
Shader Speed 1058 MHz (N/A) MHz
Memory Speed 5000 MHz 4500 MHz
Unified Shaders 384 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.2
Power (Max TDP) 64 watts 80 watts
Shader Model 5.0 5.0
Bandwidth 80000 MB/sec 72000 MB/sec
Texel Rate 33856 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 16000 Mpixels/sec

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 can be processed per second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

20 Responses to “GeForce GTX 650 vs Radeon HD 7770”

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[...] POWER CONSUMPTION gaming pc build pila na ang GTX 650 bro? cuz it a bit better than HD7770 GeForce GTX 650 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare and it will favor your BATMAN game because of its Physics and CUDA Reply With [...]

Dane says:

GTX 650 > HD7770 for sure!

Fruitty Koksukir says:

I love this card, but I love kok in my azzwhole alot more! Call me!

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bill says:

GTX 650 2GB > RHD7770 1 GB
GTX 650 1GB < RHD7770 1 GB

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Anonymous says:

AMD Radeon HD 7770 1GB GDDR5 is better than NVIDIA GeForce GTX 650 1GB GDDR5, but AMD Radeon HD 7770 1GB GDDR5 is a little bit slower than NVIDIA GeForce GTX 650 Ti 1GB GDDR5.

Emma Müller says:

MIERDA!!! cambie mi GTX 650 por un HD 7770 y me parece que andan igualadas, en unas horas comprare una GTX 560, esa si que es de las buenas

Trifke says:

Dane is right. GTX 650 > HD 7770

Gusta_Cz says:

No. HD 7770 is better. Search google!

Trifke says:

Yeah but up there writes that the GTX 650 is better than HD 7770 and I belive in that what I saw !!!

Anonymous says:

GTX 650 is a slightly faster card than the HD 7770 but the 7770 is makes it up in graphics. I would say that the HD 7770 is slightly better than the GTX 650 because graphics and performance is more important.

Noorba says:

I think these comparsion methods are useless. The pixel and texture fill rate with memory bandwidth information will never show the real performance of the GPU architecture. If there were theoretical computing performance (GFLOPS) in the comparsion, then that also wouldn't be enough to see the truth. Only real game tests are usefull so You'd rather check test at Techpowerup for example. Radeon HD7770 is faster by 15-20% than GTX650....it's a fact!

tarun says:

gtx 650 is better than hd 7770

john says:

isf we overclocked GTX 650 it 10 faster than hd7770 :D

GAME says:

yes GTX 650 faster than HD7770

deep says:

I will agree with most of them here and my research that gtx 650 is faster and consumes less power than amd hd7770

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