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RX 6700XT vs RTX 3070 the selection of energy and worth


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Taking a look at the mid-range selection we have the 6700XT vs 3070 battle. A likely good compromise of price and performance, fighting to be the best graphics card. With plenty of pros and cons for each of the choices.

The AMD vs Nvidia battle is a close one, so either of the two is a possible option. We will take a look at what separates team red and team green in this selection. Especially at the lower price points, we may hope for at this level.

ASUS ROG Strix NVIDIA GeForce RTX 3070 Gaming

ASUS ROG STRIX RTX 3070

Pros

Excellent aesthetic design

Cons

On the higher end of the price spectrum

AMD

ASUS ROG Strix Radeon RX 6700 XT OC

ASUS ROG Strix Radeon RX 6700 XT OC

Architecture

Firstly we take a look at the heart of the card with what the GPU die and what it is made of. Being from two different manufacturers the architectural differences stem right from the heart and work differently. 

AMD’s cards are based on RDNA 2.0 architecture, with the Nvidia cards based on the Ampere architecture. More specifically these GPUs are built with Navi 22 XT and GA104 300 dies respectively.

The Navi chip uses a 7nm TSMC process to create a 335mm2 die size with 17.2 billion transistors. Compared to the 8nm Samsung die in the GA chip in a 392mm2 size with 17.4 billion transistors.

RTX3070GAMINGTRIO 5

Specifications

RX 6700 XT RTX 3070
GPU Navi 22 XT(215-127000006) GA104-300-A1
Shaders 2560 5888
RT Cores 40 46
TMUs 160 184
Memory 12GB GDDR6 8GB GDDR6
Base clock 2321 MHz 1500 MHz
Boost clock 2581 MHz 1725 MHz
Memory clock 16 Gbps 14 Gbps
Card bus PCIe 4.0 x16 PCIe 4.0 x16
Memory bandwidth 384.0 GB/s 448.0 GB/s
TDP 230W 220W

Not technically a one-to-one comparison with the cards being built differently but the specs still give us a good basis. There are a few options we will take a closer look at to see what they mean and how they differ.

VRAM

The video memory of a card is used as a frame buffer and a store for texture maps. It’s more important in higher resolution applications. Since they require more pixels, they take up more space in those buffers.

There is a trade-off between speed and capacity with both sides taking different approaches. AMD takes the capacity route with 12GB of VRAM but with a lower throughput of 384.0GB/s. Compared to the 8GB found in Nvidia’s card, but running at 448.0 GB/s. The difference may have a different impact on performance 

nvidia 3070ti release

Thermal design power

The TDP of the card informs us of how much energy the card will consume at max power. This also corresponds to the heat produced by the GPU. Between the 6700XT vs 3070, the AMD card just about has a higher rating. It is 10W higher than the 3070 and so will have a higher consumption and heating effect.

Clock rate

Clock speed determines how quickly the GPU processes instructions and spews out those graphics. Based on how the cycle rate of the silicon crystals can determine the performance of the card. But also has the opportunity for overclocking with good cooling.

Between the two cards, there is a significant difference in the factory clock. AMD manages a base clock of 2,321MHz with a boost of 2,581MHz. Compared to just a 1,500MHz base and 1,725MHz boost of the Nvidia GPU. Giving AMD a large advantage in processing speed.

RadeonRX6800XT 6

Core counts

Cores are the sections that make up the die sections, They each have a specialization that allows them to focus on just one task. With the different setups between the two, they are likely to behave and set up differently.

Shaders are focused on the shadows and shading of the scene and graphics. Nvidia takes advantage of numbers on these cores. It features 5,888 units compared to just 2,560 of the 6700XT.

There are also the RT cores, these are the ray tracing focused units. Here the 3070 just about also has the advantage, with 46 compared to 40. And the same case is in TMUs, the texture mapping units that focus on 3d mapping from bitmaps. It sports 184 compared to AMD’s 160.

6700XT vs 3070 performance

Taking a look at 3dmarks benchmarks they show pure graphics performance of the GPUs. In the scenario of the 6700XT vs 3070, it’s the RTX card that takes the slight lead. It achieves a score of 13,679 compared to the RXs of 12,604. Showing a significant advantage even with the slower clock.

RadeonRX6800XT 9

The same story is seen in actual performance as well. With the 3070 achieving an effective speed 30% higher than the 6700XT. With the average score also 25% above its opponent. Showing that the clock rate isn’t as important as the rest of the build and software it has to follow.

Price comparison

It’s at MSRP that the AMD card tries to claw back its disadvantage. The launch price for the card was $479, whilst the Nvidia card launched for $499. So there is only $20 in it and so the performance benefit is likely worth that extra cost.

Although, at the current time, GPUs are still expensive in the current market. And even with the prices still falling it is hard to find them at MSRP. So at the moment, the cheapest 6700XT starts at $800, with the 3070 at $1195. A rather significant difference between their MSRP and between each other.

AMD

MSI Radeon RX 6700 XT Gaming X

MSI Radeon RX 6700 XT Gaming X

Evga Logo

EVGA GeForce RTX 3070 FTW3 Ultra Gaming

EVGA RTX 3070 Ultra gaming

Cons

Design can be a little basic for some

Conclusion

Overall, looking at the 6700XT vs 3070 battle it’d be hard not to recommend the Nvidia card. With such a bigger performance at only a slight extra cost on MSRP, it is an easy choice. However, in the current market, it would be hard to justify the near $400 extra for the card so it’s best to get what you can afford. You can always wait for the next generation of RTX 4000 series cards for more choice and performance, or even Intel ARC Alchemist at this performance level.

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