The Assemblage Of GeForce GTX 650 Ti Graphics Cards (Part 1)

6/20/2013 9:07:32 AM

Today, we will review 5 penetration-level graphics cards, the products showing up at an acceptable pricing, including 1 original model from Nvidia, 3 GeForce GTX 650 Ti priority products of ECGA, Gigabyte, Zotac and Zotac GeForce GT 640. What does this price range offer us today? Let’s find out!

The graphics card family having the price from 100$ to 200$ is known as the products that meet the highest demand of the users. Representing for these current generations of product are the Radeon HD 7850 and HD 7870 line of AMD and GeForce GTX 660 and 660 Ti of Nvidia, they support all cutting-edge techs and are able to reach the moderate performance for the latest 3D game apps. However, not all users need such performance, so they are looking for the simpler and cheaper solutions.

They are Radeon HD 7770 and HD 7750 of AMD we tested earlier and the recently released Nvidia GeForce GTX 650 Ti. It is the last product we will mention in this review. Apart from the original GeForce GTX 650 Ti version, we also take 3 different models from EVGA, Gigabyte and Zotac. We will also take GeForce GT 640 of Zotac into account, the product that officially positioned at low-end gaming-graphics card segment, equipped with GPU Nvidia.

Products participating in the tests

Nvidia GeForce GTX 650 Ti 1GB

We realize that Nvidia GeForce GTX 650 Ti doesn’t have any packing except for an anti-static packing. The product looks humble, only 145-mm long.

Nvidia GeForce GTX 650 Ti 1GB

Nvidia GeForce GTX 650 Ti 1GB

The black PCB (Printed circuit board) looks perfect on the black plastic coating of the cooler. The later-generation products seem to be bigger, but it’s just an illustration because this PCB maybe the smallest among the graphics card for gaming.

Nvidia GeForce GTX 650 Ti 1GB is equipped with 2 dual-link DVI ports and a HDMI 1.4a mini port.

DVI and HDMI ports

DVI and HDMI ports

We can see a standard 6-pin power connector located at its normal position:

Charger connector

Charger connector

According to the announced technical standards, Nvidia GeForce GTX 650 Ti consumes a maximum of 110 watts. A computer with such graphics card is encouraged to have 400-watt or higher PSU. The products in this segment lack SLI connector.

The PCB is extremely simplified with the feature of which is a 3-phrase power system with 2 phrases for the GPU and one for the memory chipset.



All memory chips are positioned at the front face of the PCB although there are silver buffer for them at the rear. GPU GK 106 doesn’t have any protective frame, so you need to be especially careful when removing or fitting up the cooler into them. Our testing GPU is the A1 version made in the 30th week of 2012.

GPU phiên bản A1

GPU version A1

In contrast to the GK 106, which is mounted on the GeForce GTX 660, GPU of GTX 650 Ti only has processors with 768-shader capacity, 64 texture-mapping units and 16-raster scans (we want to tell you that GPU of GTX 660 is 960/80/24). The clock rate of GPU is also lower. Instead of the base and advanced frequencies of 980 and 1033 MHz, GPU works with the speed of 928 MHz and doesn’t have any different advanced modes. This doesn’t stop the graphics card manufacturers from releasing the pre-overclocked version for these kinds of products, which we will see below.

GeForce GTX 650 Ti can come with a 1- or 2-GB GDDR5 memory. Our sample use the 1-GB memory in 4 FCBGA chips of Hynix Semiconductor, which has the label of H5GQ2H24AFR R0C

Chip H5GQ2H24AFR R0C

H5GQ2H24AFR R0C Chip

That’s the fastest chip the Hynix offers right after they clocked for the frequency of 6,000 MHz. however, the original GeForce GTX 650 Ti has the memory frequency of 5,400 MHz.  Accompanying with 128-bit bus, this means that the memory bandwidth is 86.4 GB/s. not much compared to the current standards, but in general, we are still doing research on the low-end graphics card, after all.

Here is the summary of technical standards of the original GeForce GTX 650 Ti:

The cooling system is extremely simple, including an aluminum heatsink foil and a plastic cover, along with an 80-mm fan.

Cooling system

Cooling system

To check thermal energy of the graphics card in the review, we perform 5 consecutive tests with the Aliens vs Predator (2010) game with highest image quality settings with 1,920x1,080- resolution and 16x anisotropic filtering, 4x MSAA antialiasing. We use MSI Afterburner 2.3.0 and GPU-Z 0.6.6 as controlling tool. This test is performed in a closed system with the room temperature at 230C. All thermal tests are performed before we take the card apart, which means that with the default platform still unchanged.

Let’s see how this simple cooler deals with GeForce GTX 650 Ti when its fan is set at auto mode or max mode.

Auto fan mode and max fan mode

Auto fan mode and max fan mode

The performance of the cooler is good enough for its primitive design. GPU is only 650C hot at auto fan mode, which means that the fan runs 26% speed. When the fan runs at full speed, GPU has the temperature of 570C. The noise factor will be discussed later.

It’s interesting when we overclock the GeForce GTX 650 Ti. By increasing the memory frequency step by step, we have reached the frequency of 7,200 MHz (or +0.33%); meanwhile, GPU is still stable after we increase its clock rate to 160 MHz (+17.2% compared to the default clock rate).

Overclocking process as trial

Overclocking process as trial

The result above is amazing for such a cheap-priced graphics card. Indeed, it’s the best combined result (GPU+ memory) in this test session. The final clock rate of Nvidia GeForce GTX 650 Ti is 1088/7200 MHz:

Overclocking result

Overclocking result

When overclocking, GPU is only 10C hotter. Its temperature at the peak level is 680C:

Overclocking result

Overclocking result 

And the fan seems to rotate at the same speed as it did before.

Nvidia GeForce GTX 650 Ti 1GB technical specs

·         CUDA Cores: 768

·         Base Clock: 928 MHz

·         Texture Fill Rate (billion/sec): 59.2

·         Memory Clock: 5.4 Gbps

·         Standard Memory Configuration: 1,024 MB

·         Memory Interface: GDDR5

·         Memory Interface Width 128-bit

·         Memory Bandwidth (GB/sec): 86.4

·         OpenGL: 4.3

·         Bus Support: PCI Express 3.0

·         Certified for Windows 8: Yes

·         Supported Technologies: DirectX 11, PhysX, CUDA, 3D Vision, TXAA, FXAA, Adaptive VSync, NVIDIA Surround

·         3D Vision Ready: Yes

·         Multi Monitor: 4 Displays

·         Maximum Digital Resolution: 4,096x2,160

·         Maximum VGA Resolution: 2,048x1,536

·         HDCP: Yes

·         HDMI: Yes

·         Standard Display Connectors: One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI

·         Audio Input for HDMI: Internal

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