GeForce 830M vs GeForce GT 745M: 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 830M is better0
No advantages found in our data.
Where GeForce GT 745M is better1
Memory bus 64 bit more128 bit vs 64 bit
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 2.90
GPU, bmw27 (CUDA) · s, lower is better
GeForce 830M1,128.8 sGeForce GT 745Mno dataNo advantage conclusion: no comparable result for the second model.
About the measurement and source
- A · NVIDIA GeForce 830M
1,128.8 s · community measurement, sample 1 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 1 submissions (0 outliers excluded), interquartile range 1128.8–1128.8; submissions 2020-10-08 to 2020-10-08; CUDA backend. Snapshot 2026-11-14.
- B · NVIDIA GeForce GT 745M
- no comparable result
difference = |A − B| ÷ the smaller value × 100%. The 5% noticeable threshold is a UX heuristic, not statistical significance.
Render time of a single Cycles scene without synchronization. Median of submissions after filtering.
Reference results (2)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 2.83GPU, bmw27 (CUDA) | 1,112.8 | — | no pair |
| Blender Benchmark 4.5.0GPU, sum of scenes monster + junkshop + classroom (CUDA) | — | 49.3 | 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 830M | B · GeForce GT 745M | Difference |
|---|---|---|---|
| Chip | |||
| GPU chip | GM108 | GK107 | differs |
| Architecture | Maxwell | Kepler | differs |
| Clocks | |||
| Base clock | 1,029 MHz | 837 MHz | A: 192 MHz more |
| Memory | |||
| Video memory | 2 GB | 2 GB | equal |
| Memory type | DDR3 | no data | no data for B |
| Memory bus | 64 bit | 128 bit | B: 64 bit more |
| Memory bandwidthExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently. | 14.4 GB/s | no data | no data for B |
| 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 | 45 W (TDP) | no data for A |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 | equal |
Chip
GPU chip
AGM108
BGK107
differsArchitecture
AMaxwell
BKepler
differs
Clocks
Base clock
A1,029 MHz
B837 MHz
A: 192 MHz more
Memory
Video memory
A2 GB
B2 GB
equalMemory type
ADDR3
Bno data
no data for BMemory bus
A64 bit
B128 bit
B: 64 bit moreMemory bandwidth
A14.4 GB/s
Bno data
no data for BExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently.
Power and dimensions
Board power
Ano data
B45 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
APCIe 3.0 x16
BPCIe 3.0 x16
equal
“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.
Questions and answers
How much video memory do NVIDIA GeForce 830M and NVIDIA GeForce GT 745M have?
NVIDIA GeForce 830M: 2 GB DDR3, 64-bit bus. NVIDIA GeForce GT 745M: 2 GB, 128-bit bus.
Which PCIe interface do the cards use?
NVIDIA GeForce 830M: PCIe 3.0 x16. NVIDIA GeForce GT 745M: PCIe 3.0 x16.
See also
Data sources (2)
- Wikipedia (English) — specifications of NVIDIA GeForce 830M, specifications of NVIDIA GeForce GT 745M, 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 4.5.0checked November 14, 2026
How we compare: methodology. Where the data comes from: sources.