NVIDIA GeForce GTX 970M vs NVIDIA GeForce RTX 3080 12 GB Comparison

The NVIDIA GeForce RTX 3080 12 GB and the NVIDIA GeForce GTX 970M represent two vastly different eras of NVIDIA's mobile and desktop GPU design. The data shows a generational chasm: the RTX 3080 12 GB delivers a score of 4791 in the 3DMark Steel Nomad DX12 test, while the GTX 970M manages only 472 in the same test. This translates to a 915% delta in favor of the newer card, placing them in entirely different performance tiers despite their similar overall percentile rankings (28th vs 27th) among all GPUs.

Where Each One Wins

The RTX 3080 12 GB wins decisively in every measurable benchmark category where both cards have data. In the only direct head-to-head test available, the 3DMark Steel Nomad DX12 benchmark, the RTX 3080 12 GB scores 4791 against the GTX 970M's 472, a 915% advantage. This is not a marginal victory; it is a complete sweep. The RTX 3080 12 GB's average benchmark score of 4791 is nearly identical to its single 3DMark result, suggesting consistent high-end performance across workloads. In contrast, the GTX 970M shows a wider spread across its benchmark suite, with its highest score being 18,946 in Geekbench OpenCL and its lowest being 24 in Passmark DirectX 12. The GTX 970M's wins are nonexistent in direct comparison; its strengths lie only in the fact that it has multiple benchmark results to analyze, whereas the RTX 3080 12 GB only has one recorded test.

For use-case analysis, the RTX 3080 12 GB is the clear choice for any modern DirectX 12 workload, given its 12 Ultimate (12_2) API support versus the GTX 970M's 12 (12_1). The RTX 3080 12 GB also supports hardware ray tracing with 70 RT cores and AI acceleration with 280 tensor cores, features entirely absent from the GTX 970M. The GTX 970M, being a mobile MXM module, is designed for laptops and portable systems, whereas the RTX 3080 12 GB is a dual-slot desktop card. If portability is the sole requirement, the GTX 970M holds a niche advantage simply by existing in a mobile form factor, but that is a form-factor win, not a performance one.

Architecture Differences

The two GPUs are built on fundamentally different architectures from different foundries. The RTX 3080 12 GB uses the GA102 chip on NVIDIA's Ampere architecture, fabricated on Samsung's 8 nm process. This chip contains 28,300 million transistors on a 628 mm² die, yielding a transistor density of 45.1 million per mm². The GTX 970M, by contrast, uses the GM204 chip on the older Maxwell 2.0 architecture, built on TSMC's 28 nm process. It packs 5,200 million transistors on a 398 mm² die, with a density of just 13.1 million per mm². The architectural leap is staggering: the RTX 3080 12 GB has over five times the transistor count and over three times the density.

Memory configurations differ sharply. The RTX 3080 12 GB features 12 GB of GDDR6X memory on a 384-bit bus, delivering 912.4 GB/s of bandwidth. The GTX 970M has 6 GB of GDDR5 on a 192-bit bus, providing only 120.3 GB/s. Clock speeds also favor the newer card: the RTX 3080 12 GB runs at a base of 1260 MHz and boosts to 1710 MHz, while the GTX 970M runs at 924 MHz base and 1038 MHz boost. The RTX 3080 12 GB's memory clock is listed at 1188 MHz with 19 Gbps effective, versus the GTX 970M's 1253 MHz with 5 Gbps effective. Core counts are similarly lopsided: 8960 shading units, 280 TMUs, and 96 ROPs on the RTX 3080 12 GB, compared to 1280 shading units, 80 TMUs, and 48 ROPs on the GTX 970M. The RTX 3080 12 GB also adds 70 RT cores and 280 tensor cores, which the GTX 970M lacks entirely.

The Verdict

The data leaves no room for ambiguity: the RTX 3080 12 GB is the superior graphics processor by every measurable metric. Its 3DMark Steel Nomad score is 915% higher than the GTX 970M's, and its average benchmark score of 4791 dwarfs the GTX 970M's 4628. The RTX 3080 12 GB also sits in the 28th percentile among all GPUs, while the GTX 970M sits at 27th, which is misleading given the enormous score gap; the percentile ranking appears to reflect the GTX 970M's broader benchmark suite rather than its raw 3DMark performance. Anyone building a desktop system for gaming or content creation should choose the RTX 3080 12 GB without hesitation, provided they have a 750 W power supply and a PCIe 4.0 x16 slot.

The GTX 970M is strictly a legacy mobile component. Its MXM-B (3.0) interface and lack of power connectors make it suitable only for specific laptop upgrades or repairs. It cannot compete in any modern DirectX 12 title, and its lack of RT and tensor cores means no ray tracing or DLSS support. The GTX 970M's only advantage is its existence in the mobile space; if you need a GPU for a portable device and cannot use a desktop card, it is a functional option, but the benchmark data shows it is over 10x slower in the one test where both have scores. The verdict is simple: the RTX 3080 12 GB for any desktop build, the GTX 970M only for mobile systems where no other option exists.

FAQ

Q: How much faster is the RTX 3080 12 GB than the GTX 970M in DirectX 12?

A: In the 3DMark Steel Nomad DX12 benchmark, the RTX 3080 12 GB scores 4791 versus the GTX 970M's 472, a 915% delta in favor of the RTX 3080 12 GB.

Q: Does the GTX 970M support ray tracing or AI acceleration?

A: No. The GTX 970M has no RT cores and no tensor cores. The RTX 3080 12 GB includes 70 RT cores and 280 tensor cores.

Q: What are the memory differences between the two cards?

A: The RTX 3080 12 GB has 12 GB of GDDR6X on a 384-bit bus with 912.4 GB/s bandwidth. The GTX 970M has 6 GB of GDDR5 on a 192-bit bus with 120.3 GB/s bandwidth.

Q: Which card has a higher transistor density?

A: The RTX 3080 12 GB has a density of 45.1 million transistors per mm², while the GTX 970M has 13.1 million per mm². The RTX 3080 12 GB also has 28,300 million total transistors versus 5,200 million on the GTX 970M.

Q: Are these cards comparable in form factor?

A: No. The RTX 3080 12 GB is a dual-slot desktop card measuring 285 mm in length, 112 mm in height, and 40 mm in width. The GTX 970M is an MXM module with no listed dimensions and no power connectors, designed for portable devices.

Q: What are the API support differences?

A: The RTX 3080 12 GB supports DirectX 12 Ultimate (12_2) and OpenGL 4.6, while the GTX 970M supports DirectX 12 (12_1) and OpenGL 4.6. Both support Vulkan 1.4.

Head-to-Head Benchmarks

The only direct head-to-head benchmark available is the 3DMark Steel Nomad DX12 test, and it is not close. The RTX 3080 12 GB scores 4791, while the GTX 970M scores 472, resulting in a 915% delta. This single test encapsulates the entire performance gap: the RTX 3080 12 GB is over ten times faster in a modern DirectX 12 workload. To put that in perspective, the RTX 3080 12 GB's nearest rivals include the AMD Radeon R5 M255 (score 4788, delta 0.1%) and the NVIDIA GeForce 940MX (score 4844, delta -1.1%), showing it is in a completely different league from the GTX 970M, whose nearest rivals are the NVIDIA Quadro M3000M (score 4621, delta 0.2%) and the AMD Radeon R5 M320 (score 4657, delta -0.6%).

The GTX 970M's other benchmark results, while not directly comparable to the RTX 3080 12 GB, paint a picture of a card struggling with modern APIs. Its Passmark DirectX 12 score is 24, DirectX 11 is 42, and DirectX 10 is 28. Even its best Passmark score, 99 in DirectX 9, is a legacy workload. In OpenCL, the GTX 970M scores 18,946, and in Vulkan it scores 18,292, but these are compute-oriented tests that do not translate to gaming performance. The RTX 3080 12 GB's single benchmark score of 4791 stands as the definitive metric for comparison, and it is decisively higher.

Specification Differences

The specification sheets for these two GPUs read like a comparison between a modern flagship and a decade-old mobile part. The RTX 3080 12 GB is built on an 8 nm process at Samsung, while the GTX 970M uses a 28 nm process at TSMC. The RTX 3080 12 GB's GA102 chip has 28,300 million transistors on a 628 mm² die; the GTX 970M's GM204 has 5,200 million on a 398 mm² die. Clock speeds differ significantly: the RTX 3080 12 GB boosts to 1710 MHz, while the GTX 970M boosts to just 1038 MHz. Memory is another major divide: the RTX 3080 12 GB offers 12 GB of GDDR6X at 19 Gbps effective, whereas the GTX 970M offers 6 GB of GDDR5 at 5 Gbps effective.

Core configurations are wildly different. The RTX 3080 12 GB has 8960 shading units, 280 TMUs, and 96 ROPs, along with 70 RT cores and 280 tensor cores. The GTX 970M has 1280 shading units, 80 TMUs, and 48 ROPs, with no RT or tensor cores. Pixel and texture rates reflect this: the RTX 3080 12 GB outputs 164.2 GPixel/s and 478.8 GTexel/s, while the GTX 970M manages 49.82 GPixel/s and 83.04 GTexel/s. FP32 compute is 30.64 TFLOPS for the RTX 3080 12 GB versus 2.657 TFLOPS for the GTX 970M. The RTX 3080 12 GB consumes 350 W and requires a 750 W power supply with a 1x 12-pin connector; the GTX 970M has no listed TDP or PSU requirement, using an MXM-B (3.0) interface. The RTX 3080 12 GB also features PCIe 4.0 x16, while the GTX 970M is limited to MXM-B. Finally, the RTX 3080 12 GB has a launch MSRP of 799 USD, while the GTX 970M has no launch MSRP listed.