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Home » AMD Radeon HD 7750 Video Card Review

AMD Radeon HD 7750 Video Card Review

[nextpage title=”Introduction”]

Today, let’s take a look at the new Radeon HD 7750, a USD 110 video card based on the latest graphics architecture from AMD, dubbed “Graphics Core Next” or simply “GCN,” which supports the new PCI Express 3.0 connection and the latest DirectX version (11.1).

For a detailed explanation of the new features present on this latest architecture, please read our Radeon HD 7970 review.

The Radeon HD 7750 and Radeon HD 7770 use the codename “Cape Verde.” By the way, this country is located in the Northern Hemisphere, not in the Southern. (This new GPU architecture from AMD used by these video cards is codenamed “Southern Islands.”) We’ve already reviewed the Radeon HD 7770.

At USD 110, the new Radeon HD 7750 competes with the GeForce GTS 450 and is a little cheaper than the GeForce GTX 550 Ti. In the table below, we compare the main specifications of the video cards included in our review. The prices listed below do not include rebates and are for the models with the clock and memory configurations listed below. Prices were researched at Newegg.com on the day we published this review, except for the Radeon HD 7750 and the Radeon HD 7770, which are the prices advertised by AMD.

Video Card Core Clock Shader Clock Memory Clock (Effective) Memory Interface Memory Transfer Rate Memory Shaders DirectX Price
Radeon HD 7750 800 MHz 800 MHz 4.5 GHz 128-bit 72 GB/s 1 GB GDDR5 512 11.1 USD 110
Radeon HD 7770 1 GHz 1 GHz 4.5 GHz 128-bit 72 GB/s 1 GB GDDR5 640 11.1 USD 160
GeForce GTS 450 783 MHz 1,566 MHz 3.6 GHz 128-bit 57.7 GB/s 1 GB GDDR5 192 11 USD 110 – USD 140
GeForce GTX 550 Ti 900 MHz 1.8 GHz 4.1 GHz 192-bit 98.4 GB/s 1 GB GDDR5 192 11 USD 120 – 130

You can compare the specs of these video cards with other video cards by taking a look at our “AMD ATI Chips Comparison Table” and “NVIDIA Chips Comparison Table” tutorials.

Today, only the LGA2011 Core i7 processors (“Sandy Bridge-E”) have a PCI Express 3.0 controller. In our Radeon HD 7970 review, we discovered that, at this time, there is no difference between using a PCI Express 2.0 or a PCI Express 3.0 connection. Since the reviewed video card is a mainstream product, we decided to use a different testing platform, based on a Core i5-2500K processor.

Now let’s take a complete look at the AMD Radeon HD 7750 reference model.

[nextpage title=”The AMD Radeon HD 7750″]

Below we have an overall look at the AMD Radeon HD 7750 reference model. It doesn’t require an auxiliary power connector.

AMD Radeon HD 7750Figure 1: AMD Radeon HD 7750

AMD Radeon HD 7750Figure 2: AMD Radeon HD 7750

The card provides one DisplayPort, one DVI-D, and one HDMI connector.

AMD Radeon HD 7750Figure 3: Video connectors

[nextpage title=”The AMD Radeon HD 7750 (Cont’d)”]

The Radeon HD 7750 uses a thin aluminum cooler with a 65 mm fan, which touches only the GPU.

AMD Radeon HD 7750Figure 4: Video card cooler

AMD Radeon HD 7750Figure 5: Video card cooler

In Figure 6, you can see the video card with its cooler removed. It uses a voltage regulator with two phases for the GPU. All coils use ferrite cores and all capacitors are solid.

AMD Radeon HD 7750Figure 6: AMD Radeon HD 7750

AMD Radeon HD 7750Figure 7: Main voltage regulator

The reviewed video card uses four Hynix H5GQ2H24MFR-T2C GDDR5 chips, each one storing 2 Gbit of data, making the 1 GB of memory available on this video card. Each chip is connected to the GPU through a 32-bit lane, creating the 128-bit datapath that is available. These chips can run up to 5 GHz. On this video card, they are accessed at 4.5 GHz, leaving an 11% margin for you to increase the memory clock still within specifications. Of course, you can always try to push the memory clock above its specs. This is the same configuration used on the Radeon HD 7770 GHz Edition.

AMD Radeon HD 7750Figure 6: Memory chips

Before seeing the performance results, let’s recap the main features of this video card.

[nextpage title=”Main Specifications”]

The main specifications for the AMD Radeon HD 7750 reference model include:

  • Graphics chip: Radeon HD 7750 running at 800 MHz
  • Memory: 1 GB GDDR5 memory (128-bit interface) running at 4.5 GHz QDR (Hynix H5GQ2H24MFR-T2C chips)
  • Bus type: PCI Express 3.0 x16
  • Video Connectors: One DVI-D, one HDMI, a
    nd one DisplayPort
  • Video Capture (VIVO): No
  • Cables and adapters that come with this board: NA
  • Number of CDs/DVDs that come with this board: NA
  • Games included: NA
  • Programs included: NA
  • More information: https://www.amd.com
  • MSRP in the U.S.: USD 110.00

[nextpage title=”How We Tested”]

During our benchmarking sessions, we used the configuration listed below. Between our benchmarking sessions, the only variable was the video card being tested.

Hardware Configuration

  • CPU: Core i5-2500K (3.3 GHz)
  • Motherboard: MSI Z68-GD80 (B3) (17.4 BIOS)
  • Memories: 4 GB DDR3-1866/PC3-14900, two G.Skill Ripjaws XF3-14900CL9D-4GXL memory modules
  • Hard disk drive: Western Digital VelociRaptor WD3000GLFS (300 GB, SATA-300, 10,000 rpm, 16 MB cache)
  • Video monitor: Samsung SyncMaster 305T (30” LCD, 2560×1600)
  • Power Supply: Antec TruePower New 750 W
  • CPU Cooler: Intel stock

Software Configuration

  • Windows 7 Ultimate 64-bit
  • Video resolution: 2560×1600 @ 60 Hz

Driver Versions

  • AMD video driver version (Radeon HD 6850): Catalyst 12.1
  • AMD video driver version (Radeon HD 7750): 8.923.2
  • NVIDIA video driver version: 285.62
  • Intel Inf driver version: 9.2.0.1030

Software Used

  • 3DMark 11 Professional 1.0.3
  • Aliens vs. Predator + Benchmark Tool
  • Battlefield 3
  • Deus Ex: Human Revolution
  • DiRT3
  • Far Cry 2 – Patch 1.03
  • Media Espresso 6.5
  • StarCraft II: Wings of Liberty – Patch 1.3.5

Error Margin

We adopted a 3% error margin. Thus, differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.

[nextpage title=”StarCraft II: Wings of Liberty “]

StarCraft II: Wings of Liberty is a very popular DirectX 9 game that was released in 2010. Though this game uses an old version of DirectX, the number of textures that can be represented on one screen can push most of the top-end graphics cards to their limits. StarCraft II: Wings of Liberty uses its own physics engine that is bound to the CPU and thus does not benefit from PhysX.

We tested this game at 1920×1200. The quality of the game was set to the “extreme” preset. We then used FRAPS to collect the frame rate of a replay on the “Unit Testing” custom map. We used a battle between very large armies to stress the video cards.

AMD Radeon HD 7750

Starcraft II: Wings of Liberty 1920×1200 Difference
Radeon HD 7770 74.3 22.2%
GeForce GTX 550 Ti 63.8 4.9%
Radeon HD 7750 60.8
GeForce GTS 450 60.1 1.1%

[nextpage title=”Far Cry 2″]

Released in 2008, Far Cry 2 is based on a game engine called Dunia, which is DirectX 10. We used the benchmarking utility that comes with this game at 1920×1200, setting overall quality to “high,” adjusting anti-aliasing to “4x,” and running the “Ranch Long” demo three times. The results below are expressed in frames per second and are an arithmetic average of the three results collected.

AMD Radeon HD 7750

FarCry 2 1920×1200 Difference
Radeon HD 7770 53.3 27.8%
GeForce GTX 550 Ti 45.3 8.6%
Radeon HD 7750 41.7
GeForce GTS 450 41.5 0.6%

[nextpage title=”Aliens vs. Predator”]

Aliens vs. Predator is a DirectX 11 game that makes full use of tessellation and advanced shadow rendering. We used the Aliens vs. Predator Benchmark Tool developed by Rebellion. This program reads its configuration from a text file. (Our configuration file can be found here.) We ran this program at 1920×1200, with texture set at “high,” shadows set at “low,” with anisotropic filtering and anti-aliasing disabled.

AMD Radeon HD 7750

Aliens vs. Predator 1920×1200 Difference
Radeon HD 7770 33.8 39.1%
GeForce GTX 550 Ti 27.3 12.3%
Radeon HD 7750 24.3
GeForce GTS 450 23.8 2.3%

[nextpage title=”DiRT3″]

DiRT3 is a DirectX 11 game in which we measured the video cards’ performance by running a race and then playing it back using FRAPS. We ran this game at 1920×1200 with image quality set to “high” and with anti-aliasing disabled.

AMD Radeon HD 7750

DiRT3 1920×1200 Difference
Radeon HD 7770 77.4 24.6%
GeForce GTX 550 Ti 67.5 8.7%
Radeon HD 7750 62.1
GeForce GTS 450 61.9 0.4%

[nextpage title=”Deus Ex: Huma
n Revolution”]

Deus Ex: Human Revolution is another DirectX 11 game. We used the in-game introduction to measure the number of frames per second, using FRAPS. We ran the introduction at 1920×1200, configuring image quality settings at “very high” and with anti-aliasing and anisotropic filtering disabled.

AMD Radeon HD 7750

Deus Ex: Human Revolution 1920×1200 Difference
Radeon HD 7770 49.8 26.8%
GeForce GTX 550 Ti 43.8 11.5%
GeForce GTS 450 39.8 1.4%
Radeon HD 7750 39.3

[nextpage title=”Battlefield 3″]

Battlefield 3 is the latest installment in the Battlefield franchise released in 2011. It is based on the Frostbite 2 engine, which is DirectX 11. In order to measure performance using this game, we walked our way through the first half of the “Operation Swordbreaker” mission, measuring the number of frames per second using FRAPS. We ran this game at 1920×1200, configuring image quality settings at “high” and disabling anti-aliasing and anisotropic filtering.

AMD Radeon HD 7750

Battlefield 3 1920×1200 Difference
Radeon HD 7770 51.8 25.1%
GeForce GTX 550 Ti 43.6 5.3%
Radeon HD 7750 41.4
GeForce GTS 450 40.5 2.3%

[nextpage title=”3DMark 11 Professional”]

3DMark 11 Professional measures Shader 5.0 (i.e., DirectX 11) performance. We ran this program at 1920×1200, selecting the four graphics tests available and deselecting the other tests available. We used two image quality settings, “entry” and “performance,” both at their default settings. The results being compared are the “GPU Score” achieved by each video card.

AMD Radeon HD 7750

3DMark 11 – Entry 1920×1200 Difference
Radeon HD 7770

1869

35.2%
GeForce GTX 550 Ti

1516

9.7%
Radeon HD 7750

1382

GeForce GTS 450

1323

4.5%

AMD Radeon HD 7750

3DMark 11 – Performance 1920×1200 Difference
Radeon HD 7770

1623

35.8%
GeForce GTX 550 Ti

1255

5.0%
Radeon HD 7750

1195

GeForce GTS 450

1094

9.2%

[nextpage title=”Media Espresso 6.5″]

Media Espresso is a video conversion program that uses the graphics processing unit of the video card to speed up the conversion process. We converted a 449 MB, 1920x1080i, 18,884 kbps, MPEG2 video file to a smaller 640×360, H.264, .MPG4 file for viewing on a portable device such as an iPhone or iPod Touch. We also ran this test on our CPU (Core i5-2500K) in order to compare the difference in performance between a mainstream CPU and a mainstream GPU to transcode video.

AMD Radeon HD 7750

Media Espresso 6.5 Seconds Difference
Radeon HD 7770

41

4.7%
Radeon HD 7750

43

GeForce GTX 550 Ti

50

14.0%
GeForce GTS 450

51

15.7%
Core i5-2500K

67

35.8%

[nextpage title=”Conclusions”]

The Radeon HD 7750 achieved the same performance level as the GeForce GTS 450 on all the games we ran; it was between 4% and 9% faster than its main competitor on 3DMark 11. The greatest difference between these two video cards, however, was for “GPGPU” applications, i.e., using the GPU to run regular programs in order to increase performance. On Media Espresso, the new Radeon HD 7750 was 19% faster than the GeForce GTS 450, proving that the new “GNC” architecture from AMD is really optimized for this kind of application.

The GeForce GTX 550 Ti, which costs a little more than the Radeon HD 7750, was between 5% and 12% faster than the reviewed card on games, but on Media Espresso the new Radeon HD 7750 was 19% faster.

The Radeon HD 7750, unlike the Radeon HD 7770 GHz, is priced right, and provides a good price/performance ratio for the user who is looking for an entry-level mainstream video card at the USD 100-110 price range, with the advantage of being significantly faster for regular applications that use the GPU in order to increase processing performance, such as Media Espresso and Photoshop.

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