Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game HD i7 3840QM Radeon HD 7640G
Cyberpunk 2077 1728% 1610%
Assassins Creed: Valhalla 1572% 1464%
Call of Duty: Black Ops Cold War 1518% 1413%
FIFA 21 822% 762%
Microsoft Flight Simulator 1518% 1413%
Watch Dogs Legion 1664% 1549%
World of Warcraft: Shadowlands 2521% 2351%
Grand Theft Auto VI 2473% 2305%
Horizon: Zero Dawn 1631% 1519%
Genshin Impact 1728% 1610%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7640G are very slightly better than the Intel HD i7 3840QM.

The HD i7 3840QM has a 154 MHz higher core clock speed than the Radeon HD 7640G, but the Radeon HD 7640G has 12 more Texture Mapping Units than the HD i7 3840QM. As a result, the Radeon HD 7640G exhibits a 5.3 GTexel/s better Texture Fill Rate than the HD i7 3840QM. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD i7 3840QM has a 154 MHz higher core clock speed than the Radeon HD 7640G, but the Radeon HD 7640G has 6 more Render Output Units than the HD i7 3840QM. As a result, the Radeon HD 7640G exhibits a 2.7 GPixel/s better Pixel Fill Rate than the HD i7 3840QM. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 7640G was released less than a year after the HD i7 3840QM, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The HD i7 3840QM and the Radeon HD 7640G have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The Radeon HD 7640G has 12.8 GB/sec greater memory bandwidth than the HD i7 3840QM, which means that the memory performance of the Radeon HD 7640G is slightly better than the HD i7 3840QM.

The HD i7 3840QM has 16 Shader Processing Units and the Radeon HD 7640G has 256. However, the actual shader performance of the HD i7 3840QM is 83 and the actual shader performance of the Radeon HD 7640G is 127. The Radeon HD 7640G having 44 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon HD 7640G delivers a marginally smoother and more efficient experience when processing graphical data than the HD i7 3840QM.

The HD i7 3840QM transistor size technology is 10 nm (nanometers) smaller than the Radeon HD 7640G. This means that the HD i7 3840QM is expected to run very slightly cooler and achieve higher clock frequencies than the Radeon HD 7640G. While they exhibit similar graphical performance, the HD i7 3840QM should consume less power than the Radeon HD 7640G.

The HD i7 3840QM requires 45 Watts to run and the Radeon HD 7640G requires 35 Watts. The HD i7 3840QM requires 10 Watts more than the Radeon HD 7640G to run. The difference is not significant enough for the HD i7 3840QM to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 7640G.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed650 MHzvs496 MHz
Boost Clock1300 MHzvs-
ArchitectureIvy Bridge GT2Terascale 3: Trinity
OC Potential - vs Great
Driver Support Good vs -
Release Date29 Apr 2012vs15 May 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - green tick vs green tick -
1920x1080
2.1
green tick vs -
2560x1440 - green tick vs green tick -
3840x2160
0.1
green tick vs -

GPU Memory

MemoryN/AvsN/A
Memory Speed800 MHzvs800 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth12.8GB/secvs25.6GB/sec
L2 Cache 1024 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units16vs256
Actual Shader Performance4%vs6%
Technology22nmvs32nm
Texture Mapping Units4vs16
Texture Rate2.6 GTexel/svs7.9 GTexel/s
Render Output Units2vs8
Pixel Rate1.3 GPixel/svs4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power45 Wattsvs35 Watts
Recommended PSU--

GPU Features

DirectX11.1vs11
Shader Model5.0vs5.0
Open GL4.0vs4.1
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatednovsno
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3840QM 4-Core 2.8GHz-
Recommended RAM4 GB-
Maximum Recommended Gaming Resolution1366x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewN/ARadeon HD 7640G is an integrated GPU on the fast-middle-class Trinity CPUs.
It's based on the 32nm Terascale 3 architecture and offers 256 Shader Processing Units, 16 TMUs and 8 ROPs. The memory interface will depend on whether or not the laptop's system RAM is dual channelled (128-bit if so, 64-bit, if not) and the operating memory clock can be up to 800MHz (max speed supported by the CPU). The central unit runs at 496MHz and will go up to 685MHz in Turbo Mode. Expect a TDP of up to 35 Watt.
Its performance is slightly above Intel HD 4000 Graphics but below previous in series - Radeon HD 7620G, despite the naming, due to the lesser Shaders count which proves useful in most of today's modern games.
Some of today's modern games can be playable using the Medium preset though the low preset will have to suffice for most of them. Extremely demanding games (e.g. Crysis 3) are playable but with reduced frame rates.
Recommended CPU
-
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-