Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 980 4GB SLI GeForce GTX 675M SLI
Cyberpunk 2077 31% 107%
Assassins Creed: Valhalla 36% 91%
Call of Duty: Black Ops Cold War 29% 113%
Genshin Impact 30% 109%
eFootball PES 2021 65% 6%
Mafia: Definitive Edition 0% 200%
Watch Dogs Legion 33% 102%
FIFA 21 65% 6%
Marvel's Avengers 34% 98%
Microsoft Flight Simulator 38% 85%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 4GB SLI are massively better than the Nvidia GeForce GTX 675M SLI.

The GTX 980 has a 506 MHz higher core clock speed and 128 more Texture Mapping Units than the GTX 675M. This results in the GTX 980 providing 208.9 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 GTX 980 has a 506 MHz higher core clock speed and 64 more Render Output Units than the GTX 675M. This results in the GTX 980 providing 104.4 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 GTX 980 was released over a year more recently than the GTX 675M, and so the GTX 980 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 675M.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The GTX 980 has 4096 MB more video memory than the GTX 675M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 980 also has superior memory performance overall.

The GTX 980 has 256.8 GB/sec greater memory bandwidth than the GTX 675M, which means that the memory performance of the GTX 980 is massively better than the GTX 675M.

The GeForce GTX 980 4GB SLI has 4096 Shader Processing Units and the GeForce GTX 675M SLI has 768. However, the actual shader performance of the GTX 980 is 6724 and the actual shader performance of the GTX 675M is 952. The GTX 980 having 5772 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 980 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 675M.

The GTX 980 transistor size technology is 12 nm (nanometers) smaller than the GTX 675M. This means that the GTX 980 is expected to run slightly cooler and achieve higher clock frequencies than the GTX 675M.

The GeForce GTX 980 4GB SLI requires 350 Watts to run and the GeForce GTX 675M SLI requires 200 Watts. We would recommend a PSU with at least 750 Watts for the GTX 980. The GTX 980 requires 150 Watts more than the GTX 675M to run. The difference is significant enough that the GTX 980 may have an adverse affect on your yearly electricity bills in comparison to the GTX 675M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1126 MHzvs620 MHz
Boost Clock1216 MHzvs-
ArchitectureMaxwell GM204-400-A1 (x2)Fermi GF114 (x2)
OC Potential Fair vs None
Driver Support Great vs -
Release Date19 Sep 2014vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
10
green tick vs
9.3
1920x1080
10
green tick vs
7.3
2560x1440
9.9
green tick vs
5.3
3840x2160
7.8
green tick vs -

GPU Memory

Memory8192 MBvs4096 MB
Memory Speed1753 MHzvs750 MHz
Memory Bus512 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth448.8GB/secvs192GB/sec
L2 Cache 4096 KB green tick vs 0 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4096vs768
Actual Shader Performance100%vs46%
Technology28nmvs40nm
Texture Mapping Units256vs128
Texture Rate288.3 GTexel/svs79.4 GTexel/s
Render Output Units128vs64
Pixel Rate144.1 GPixel/svs39.7 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections1vs0
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power350 Wattsvs200 Watts
Recommended PSU750 Watts & 42 Amps-

GPU Features

DirectX12.1vs11
Shader Model5.0vs5.0
Open GL4.5vs4.1
Open CL-vs-
Notebook GPUnoyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-5820K 6-Core 3.3GHzvsIntel Core i7-3610QM 4-Core 2.3GHz
Recommended RAM16 GBvs8 GB
Maximum Recommended Gaming Resolution5760x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 980 4GB SLI is a solution of two GeForce GTX 980 4GB put together using NVIDIA's SLI technology.

Architecture
The Second variant of the Maxwell Architecture, despite being also manufactured with a 28nm technology, has an extremely large L2 Cache and features a Third Generation Delta Color Compression which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

GPU
It consists of 2 GPUs codenamed GM204-400-A1 which, together, offer 4096 Shader Processing Units, 256 TMUs and 128 ROPs, on a 512-bit memory interface of fast GDDR5. The central unit runs at 1126MHz and goes up to 1216MHz, in Turbo Mode, while the memory clock operates at 1753MHz.

Power Consumption
Power Consumption lies between 300W and 400W.

Performance
Gaming benchmarks prove that at 4K (3840x2160) GeForce GTX 980 4GB SLI is over 7% faster than AMD's Radeon R9 295X2.

System Suggestions
We recommend a very strong processor (Intel Core i7 Six Core/AMD FX Eight Core) and 16GB of RAM for a system with GeForce GTX 980 4GB SLI.
GeForce GTX 675M SLI is a solution of two GeForce GTX 675M put together using NVIDIA'S SLI technology.
Check the page of GeForce GTX 675M to know more about its chip.
As usual, SLI relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, about 35% better than a single GeForce GTX 675M performing by itself but at times (depending whether or not the 3D game supports SLI or in the graphics driver) it performed worse than a single GeForce GTX 675M.
Even the most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
-
N/A
GPU Variants
-
-