GeForce GT 630 vs GeForce GTX 645 OEM: 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 GT 630 is better0
No advantages found in our data.
Where GeForce GTX 645 OEM is better1
Memory bandwidth 35.2 GB/s more64 GB/s vs 28.8 GB/s
Benchmarks
Results are compared within one benchmark, one version and the same conditions.
Blender Benchmark 2.90
GPU, bmw27 (CUDA) · s, lower is better
GeForce GT 6301,248 sGeForce GTX 645 OEMno dataNo advantage conclusion: no comparable result for the second model.
About the measurement and source
- A · NVIDIA GeForce GT 630
1,248 s · community measurement, sample 1 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 1 submissions (0 outliers excluded), interquartile range 1247.99–1247.99; submissions 2021-05-16 to 2021-05-16; CUDA backend. Snapshot 2026-11-14.
- B · NVIDIA GeForce GTX 645 OEM
- 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 (5)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 2.83GPU, bmw27 (CUDA) | 1,133.8 | — | no pair |
| Blender Benchmark 2.82GPU, bmw27 (CUDA) | — | 849.5 | no pair |
| Blender Benchmark 2.82GPU, classroom (CUDA) | — | 3,230.1 | no pair |
| Blender Benchmark 3.1.0GPU, sum of scenes monster + junkshop + classroom (CUDA) | — | 31.9 | no pair |
| Blender Benchmark 4.5.0GPU, sum of scenes monster + junkshop + classroom (CUDA) | — | 50.1 | no pair |
Each benchmark version has its own scale: numbers are compared only within a row.
Specifications
| Specification | A · GeForce GT 630 | B · GeForce GTX 645 OEM | Difference |
|---|---|---|---|
| Chip | |||
| GPU chip | GF108-400-A1 | GK106-200-A1 | differs |
| Architecture | Fermi | Kepler | differs |
| Shader unitsShader unit counts are comparable only within one architecture. | 96 (CUDA cores) | 576 (CUDA cores) | not directly comparable |
| Clocks | |||
| Base clock | 810 MHz | 824 MHz | B: 14 MHz more |
| Memory | |||
| Video memory | 1 GB | 1 GB | equal |
| Memory type | DDR3 | GDDR5 | differs |
| Memory bus | 128 bit | 128 bit | equal |
| Memory bandwidthExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently. | 28.8 GB/s | 64 GB/s | B: 35.2 GB/s more |
| 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. | 65 W (TDP) | 65 W (TDP) | equal |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 | differs |
Chip
GPU chip
AGF108-400-A1
BGK106-200-A1
differsArchitecture
AFermi
BKepler
differsShader units
A96 (CUDA cores)
B576 (CUDA cores)
not directly comparableShader unit counts are comparable only within one architecture.
Clocks
Base clock
A810 MHz
B824 MHz
B: 14 MHz more
Memory
Video memory
A1 GB
B1 GB
equalMemory type
ADDR3
BGDDR5
differsMemory bus
A128 bit
B128 bit
equalMemory bandwidth
A28.8 GB/s
B64 GB/s
B: 35.2 GB/s moreExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently.
Power and dimensions
Board power
A65 W (TDP)
B65 W (TDP)
equalTGP (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 2.0 x16
BPCIe 3.0 x16
differs
“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 GT 630 and NVIDIA GeForce GTX 645 OEM have?
NVIDIA GeForce GT 630: 1 GB DDR3, 128-bit bus. NVIDIA GeForce GTX 645 OEM: 1 GB GDDR5, 128-bit bus.
Which PCIe interface do the cards use?
NVIDIA GeForce GT 630: PCIe 2.0 x16. NVIDIA GeForce GTX 645 OEM: PCIe 3.0 x16.
See also
Data sources (2)
- Wikipedia (English) — specifications of NVIDIA GeForce GT 630, specifications of NVIDIA GeForce GTX 645 OEM, 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 2.82, benchmark Blender Benchmark 3.1.0, benchmark Blender Benchmark 4.5.0checked November 14, 2026
How we compare: methodology. Where the data comes from: sources.