GD Star Rating

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 4850 Radeon HD 7750 Sapphire 1GB GDDR5 Edition
Fallout 4 346% 295%
Assassins Creed: Syndicate 208% 173%
Call of Duty: Black Ops 3 192% 159%
Just Cause 3 346% 295%
Star Wars: Battlefront 372% 318%
Rainbow Six: Siege 233% 195%
Need For Speed 192% 159%
FIFA 16 64% 45%
Rise of the Tomb Raider 23% 9%
Overwatch 151% 123%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7750 Sapphire 1GB GDDR5 Edition are very slightly better than the AMD Radeon HD 4850.

The HD 7750 has a 175 MHz higher core clock speed but 8 fewer Texture Mapping Units than the Radeon HD 4850. The lower TMU count doesn't matter, though, as altogether the HD 7750 manages to provide 0.6 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7750 has a 175 MHz higher core clock speed than the Radeon HD 4850 and the same number of Render Output Units. This results in the HD 7750 providing 2.8 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD 7750 was released over three years more recently than the Radeon HD 4850, and so the HD 7750 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Radeon HD 4850 when running the latest games.

The HD 7750 has 512 MB more video memory than the Radeon HD 4850, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7750 also has superior memory performance overall.

The HD 7750 has 8.4 GB/sec greater memory bandwidth than the Radeon HD 4850, which means that the memory performance of the HD 7750 is marginally better than the Radeon HD 4850.

The Radeon HD 4850 has 800 Shader Processing Units and the Radeon HD 7750 Sapphire 1GB GDDR5 Edition has 512. However, the actual shader performance of the Radeon HD 4850 is 350 and the actual shader performance of the HD 7750 is 348. The Radeon HD 4850 having 2 better shader performance is not particularly notable, as altogether the HD 7750 performs better when taking into account other relevant data.

The HD 7750 transistor size technology is 27 nm (nanometers) smaller than the Radeon HD 4850. This means that the HD 7750 is expected to run slightly cooler and achieve higher clock frequencies than the Radeon HD 4850.

The Radeon HD 4850 requires 110 Watts to run and the Radeon HD 7750 Sapphire 1GB GDDR5 Edition requires 55 Watts. We would recommend a PSU with at least 450 Watts for the Radeon HD 4850 and a PSU with at least 400 Watts for the HD 7750. The Radeon HD 4850 requires 55 Watts more than the HD 7750 to run. The difference is significant enough that the Radeon HD 4850 may have an adverse affect on your yearly electricity bills in comparison to the HD 7750.

Can I Run It

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GPU Architecture

Core Speed625 MHzvs800 MHz
Boost Clock-vs-
ArchitectureR700 RV770 PROGCN 1.0 Cape Verde PRO
OC Potential Fair vs Good
Driver Support Poor vs -
Release Date01 Jun 2008vs01 Aug 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
green tick vs
vs green tick
vs green tick
vs green tick

GPU Memory

Memory512 MBvs1024 MB
Memory Speed993 MHzvs1125 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth63.6GB/secvs72GB/sec
L2 Cache 0 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 20% vs green tick 25%

GPU Display

Shader Processing Units800vs512
Actual Shader Performance17%vs17%
Texture Mapping Units40vs32
Texture Rate25 GTexel/svs25.6 GTexel/s
Render Output Units16vs16
Pixel Rate10 GPixel/svs12.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power110 Wattsvs55 Watts
Recommended PSU450 Watts & 30 Ampsvs400 Watts & 18 Amps

GPU Features

Shader Model4.1vs5.0
Open GL3.3vs4.2
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core 2 Duo E8600 3.33GHzvsIntel Core i3-3240 3.4GHz
Recommended RAM6 GBvs8 GB
Maximum Recommended Gaming Resolution1440x900vs1600x900

Gaming Performance Value

Battlefield 3vs
Batman: Arkham Cityvs
Assassins Creed 2vs
Crysis 2vs
Grand Theft Auto IVvs
Performance Value

GPU Mini Review

Mini ReviewRadeon HD 4850 is a high-end GFX based on the 55nm, third unified shader architecture, R700.
It's based on the RV770 PRO Core and offers 800 Shader Processing Units, 40 TMUs and 16 ROPs a 256-bit memory interface of standard GDDR3. The central unit runs at 625MHz and the memory clock runs at up to 993MHz.
Some of today's modern games should run fluently at high settings but with modest resolutions. DirectX 11 games aren't supported.
Radeon HD 7750 Sapphire 1GB GDDR5 Edition is a special edition of Radeon HD 7750.
The only new feature is a new cooling system which doesn't affect the performance directly and so its performance is on level with the standard version.
Recommended CPUIntel Pentium Dual Core E6700 3.2GHz
Intel Pentium Dual Core G6960 2.93GHz
AMD Athlon II X2 270
Intel Core 2 Duo E6320 1.86GHz
AMD Athlon II X3 405e
AMD Athlon II X4 645
Intel Core i3-4370T 3.3GHz
AMD FX-4170
AMD APU A8-6600K Quad-Core
Intel Core i3-3250 3.5GHz
Possible GPU UpgradesRadeon HD 7850 Direct CU II
GeForce GTX 470 Gigabyte SOC 1.2GB Edition
GeForce GTX 560 Ti Gigabyte OC 1GB Edition
Radeon HD 6950 PowerColor 1GB Edition
Radeon HD 7850 VisionTek 2GB Edition
GeForce GTX 950 Zotac OC 2GB Edition
GeForce GTX 950 Galax KFA2 OC 2GB Edition
GeForce GTX 950 Asus DirectCU II OC Strix Gaming 2GB Edition
GeForce GTX 950 EVGA Superclocked+ ACX 2.0 2GB Edition
GeForce GTX 950 EVGA Superclocked 2.0 2GB Edition
GPU VariantsRadeon HD 4850 Gigabyte 512MB Edition
Radeon HD 4850 Sapphire Vapor-X Edition
Radeon HD 4850 Gigabyte OC Edition
Radeon HD 4850 Golden Sample Edition
Radeon HD 4850x2