GeForce 920MX vs GeForce GTX 870M: specs and benchmark comparison
Short verdict
Not enough data for a performance conclusion: the database has no comparable benchmarks for this pair. Below are the key differences in official specifications.
Compare with AIAdvantages
Only measured and rated values: a noticeable benchmark gap and specs where more is better.
Where GeForce 920MX is better0
No advantages found in our data.
Where GeForce GTX 870M is better0
No advantages found in our data.
Benchmarks
Results are compared within one benchmark, one version and the same conditions. Laptop chip results depend on the laptop model: its maker sets the power limit and cooling.
Blender Benchmark 3.5.0
GPU, sum of scenes monster + junkshop + classroom (CUDA) · samples/min, higher is better
GeForce 920MX47.8 samples/minGeForce GTX 870M150.8 samples/minNo advantage conclusion: small sample in one of the results.
About the measurement and source
- A · NVIDIA GeForce 920MX
47.8 samples/min · community measurement, sample 1 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 1 submissions (0 outliers excluded), interquartile range 47.8–47.8; submissions 2023-04-24 to 2023-04-24; CUDA backend. Snapshot 2026-11-14.
- B · NVIDIA GeForce GTX 870M
150.8 samples/min · community measurement, sample 1 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 1 submissions (0 outliers excluded), interquartile range 150.78–150.78; submissions 2023-09-06 to 2023-09-06; CUDA backend. Snapshot 2026-11-14.
difference = |A − B| ÷ the smaller value × 100%. The 5% noticeable threshold is a UX heuristic, not statistical significance.
Cycles render in Blender Benchmark. Median of the sum of samples per minute over three scenes after removing outliers.
Reference results (10)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 2.83GPU, bmw27 (CUDA) | 1,200.7 | — | no pair |
| Blender Benchmark 2.90GPU, bmw27 (CUDA) | 1,216 | — | no pair |
| Blender Benchmark 2.92GPU, bmw27 (CUDA) | 1,049.6 | — | no pair |
| Blender Benchmark 2.93.1GPU, bmw27 (CUDA) | 822.6 | — | no pair |
| Blender Benchmark 2.90GPU, bmw27 (OPTIX) | 1,532.6 | — | no pair |
| Blender Benchmark 2.82GPU, pavillon_barcelona (CUDA) | 6,440.1 | — | no pair |
| Blender Benchmark 2.81aGPU, bmw27 (CUDA) | — | 326.9 | no pair |
| Blender Benchmark 2.81aGPU, classroom (CUDA) | — | 1,130 | no pair |
| Blender Benchmark 3.3.0GPU, sum of scenes monster + junkshop + classroom (CUDA) | — | 156 | no pair |
| Blender Benchmark 4.3.0GPU, sum of scenes monster + junkshop + classroom (CUDA) | — | 120.1 | no pair |
Each benchmark version has its own scale: numbers are compared only within a row.
Specifications
Chip maker values. The laptop maker sets the power limit and clocks in each laptop.
| Specification | A · GeForce 920MX | B · GeForce GTX 870M | Difference |
|---|---|---|---|
| Chip | |||
| GPU chip | no data | GK104 | no data for A |
| Architecture | Maxwell | Kepler | differs |
| Shader unitsShader unit counts are comparable only within one architecture. | 256 (CUDA cores) | no data | no data for B |
| Memory | |||
| Video memory | 2 GB | no data | no data for B |
| Memory type | no data | GDDR5 | no data for A |
| Memory bus | no data | 192 bit | no data for A |
| Memory bandwidthExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently. | no data | 120 GB/s | no data for A |
| Power and dimensions | |||
| Board powerTGP (NVIDIA) and TBP (AMD/Intel) are calculated differently; higher is not better. For laptops, the chip maker sets the range and the laptop maker picks the value, so the same chip behaves differently in different laptops. | no data | 110 W (TDP) | no data for A |
| Interface | no data | PCIe 3.0 x16 | no data for A |
Chip
GPU chip
Ano data
BGK104
no data for AArchitecture
AMaxwell
BKepler
differsShader units
A256 (CUDA cores)
Bno data
no data for BShader unit counts are comparable only within one architecture.
Memory
Video memory
A2 GB
Bno data
no data for BMemory type
Ano data
BGDDR5
no data for AMemory bus
Ano data
B192 bit
no data for AMemory bandwidth
Ano data
B120 GB/s
no data for AExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently.
Power and dimensions
Board power
Ano data
B110 W (TDP)
no data for ATGP (NVIDIA) and TBP (AMD/Intel) are calculated differently; higher is not better. For laptops, the chip maker sets the range and the laptop maker picks the value, so the same chip behaves differently in different laptops.
Interface
Ano data
BPCIe 3.0 x16
no data for A
“More” does not always mean “better”: higher power draw or size is a system requirement, not an advantage (such bars are dimmed).
Compare with AI
An AI model reviews the specs and benchmarks of this pair and gives a plain-language verdict on who each model suits.
See also
Data sources (2)
- Wikipedia (English) — specifications of NVIDIA GeForce 920MX, specifications of NVIDIA GeForce GTX 870M, release date and launch pricechecked November 14, 2026
- Blender Open Data (Blender Foundation) — benchmark Blender Benchmark 2.83, benchmark Blender Benchmark 2.90, benchmark Blender Benchmark 2.92, benchmark Blender Benchmark 2.93.1, benchmark Blender Benchmark 2.81a, benchmark Blender Benchmark 2.82, benchmark Blender Benchmark 3.5.0, benchmark Blender Benchmark 3.3.0, benchmark Blender Benchmark 4.3.0checked November 14, 2026
How we compare: methodology. Where the data comes from: sources.