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Gaming Performance Comparison

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8750M 2GB GDDR5 are noticeably better than the Nvidia GeForce GT 555M DDR5.

The GT 555M has a 133 MHz higher core clock speed than the HD 8750M, but the HD 8750M has 16 more Texture Mapping Units than the GT 555M. As a result, the HD 8750M exhibits a 7.8 GTexel/s better Texture Fill Rate than the GT 555M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GT 555M has a 133 MHz higher core clock speed than the HD 8750M, but the HD 8750M has 4 more Render Output Units than the GT 555M. As a result, the HD 8750M exhibits a 2 GPixel/s better Pixel Fill Rate than the GT 555M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD 8750M was released over a year more recently than the GT 555M, and so the HD 8750M is likely to have better driver support, meaning it will be more optimized for running the latest games.

The HD 8750M has 1024 MB more video memory than the GT 555M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 8750M also has superior memory performance overall.

The HD 8750M has 13.8 GB/sec greater memory bandwidth than the GT 555M, which means that the memory performance of the HD 8750M is slightly better than the GT 555M.

The Radeon HD 8750M 2GB GDDR5 has 384 Shader Processing Units and the GeForce GT 555M DDR5 has 96. However, the actual shader performance of the HD 8750M is 268 and the actual shader performance of the GT 555M is 145. The HD 8750M having 123 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 8750M delivers a slightly smoother and more efficient experience when processing graphical data than the GT 555M.

The HD 8750M transistor size technology is 12 nm (nanometers) smaller than the GT 555M. This means that the HD 8750M is expected to run slightly cooler and achieve higher clock frequencies than the GT 555M.

The GeForce GT 555M DDR5 requires 35 Watts to run but there is no entry for the HD 8750M.

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GPU Core Details

Core Speed620 MHzvs753 MHz
ArchitectureGCN 1.1 Mars PROFermi GF106
Notebook GPUyesyes
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Release Date01 Jan 201305 Jan 2011
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1000 MHzvs784 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth64GB/secvs50.2GB/sec
L2 Cache 256 KB vs green tick 384 KB
Comparison

GPU Display

Shader Processing Units384vs96
Actual Shader Performance268vs145
Technology28nmvs40nm
Texture Mapping Units32vs16
Texture Rate19.8 GTexel/svs12 GTexel/s
Render Output Units8vs4
Pixel Rate5 GPixel/svs3 GPixel/s
Comparison

GPU Display Tech

DirectX11.1vs11
Shader Model5.0vs5.0
Open GL4.2vs4.1
Max Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
Comparison

GPU Power Requirements

Max Power-35 Watts

GPU Supporting Hardware

Recommended RAM6 GBvs4 GB
Recommended Screen Size1366x7681366x768
Recommended PSU--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 8750M 2GB GDDR5 is a fast-middle-class GPU based on the GCN architecture.
It offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. There are two versions available: One with DDR3 and another with GDDR5. This is the GDDR5 version. On this version, the central unit can be initially clocked at up to 620MHz reach up to 670MHz in Turbo Mode while the memory interface is of 128-bit of fast GDDR5. Compared to the DDR3 version, it's underclocked but it offers extra bandwidth needed at higher resolutions and in certain games. Still, overall, both versions should perform similar.
Until benchmarks become available, this GPU's rank is subject to change.
GeForce GT 555M DDR5 is one of the 3 variants of the fast-middle-class mobile GPU still based on the 2010 Fermi architecture.
It's based on the Fermi GF108 Core and offers 96 Shader Processing Units, 16 TMUs and 4 ROPs on a 128-bit memory interface of 1GB GDDR5. The central clock runs at 753MHz and the memory clock operates at 784MHz. Expect a power consumption of up to 35 Watts.
Its performance is related to GeForce GT 540M due to being equipped with the same core but should be clearly superior thanks to the extra memory bandwidth and the faster clocked central unit and so expect most modern games to be playable at high settings using a 720p resolution.
Recommended CPU-Intel Core i7-2637M 2-Core 1.7GHz
Intel Core i7-620M 2-Core 2.66GHz
Intel Core i5-2435M 2.4GHz
Intel Core i5-2430M 2.4GHz
Intel Core i7-2657M 2-Core 1.6GHz
Possible GPU UpgradesGeForce GT 755M
GeForce GTX 480M
GeForce GTX 660M
FirePro W4170M
Radeon HD 8850M 2GB GDDR5
GeForce GTX 470M SLI
GeForce GTX 765M
Radeon HD 6970M
GeForce GT 650M SLI
GeForce GTX 670MX
GPU Variants--