
GeForce 800A

GeForce GT 620M
GeForce 800A vs GeForce GT 620M Performance Spectrum
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
GeForce 800A vs GeForce GT 620M FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
GeForce 800A vs GeForce GT 620M: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce 800A
2014Why buy it
- ✅36.2% more average FPS across 50 tracked games in our benchmark data.
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 4.3 vs 0 G3D/$ ($100 MSRP vs Unknown MSRP).
- ✅Draws 33W instead of 45W, a 12W reduction.
Trade-offs
- ❌Less VRAM, with 512 MB vs 2 GB for high-resolution textures and newer games.
- ❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
GeForce GT 620M
2012Why buy it
- ✅300% more VRAM for high-resolution textures and newer games (2 GB vs 512 MB).
Trade-offs
- ❌Lower average FPS than GeForce 800A across 50 tracked games in our benchmark data.
- ❌2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
- ❌Lower G3D Mark per dollar, at 0 vs 4.3 G3D/$ (Unknown MSRP vs $100 MSRP).
- ❌36.4% higher power demand at 45W vs 33W.
Quick Answers
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GeForce 800A vs GeForce GT 620M Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 800A
The GeForce 800A is manufactured by NVIDIA. It was released in July 22 2014. It features the Maxwell architecture. The core clock ranges from 1082 MHz to 1150 MHz. It has 256 shading units. The thermal design power (TDP) is 33W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 435 points.

GeForce GT 620M
The GeForce GT 620M is manufactured by NVIDIA. It was released in March 22 2012. It features the Kepler architecture. The core clock ranges from Up to 900 MHz to 950 MHz. It has 384 shading units. The thermal design power (TDP) is 45W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 432 points.
Graphics Performance
The GeForce 800A scores 435 and the GeForce GT 620M reaches 432 in the G3D Mark benchmark — just a 0.7% difference, making them near-identical in rasterization performance. The GeForce 800A is built on Maxwell while the GeForce GT 620M uses Kepler, both on a 28 nm process. Shader units: 256 (GeForce 800A) vs 384 (GeForce GT 620M). Raw compute: 0.5888 TFLOPS (GeForce 800A) vs 0.7296 TFLOPS (GeForce GT 620M). Boost clocks: 1150 MHz vs 950 MHz.
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| G3D Mark Score | 435 | 432 |
| Architecture | Maxwell | Kepler |
| Process Node | 28 nm | 28 nm |
| Shading Units | 256 | 384+50% |
| Compute (TFLOPS) | 0.5888 TFLOPS | 0.7296 TFLOPS+24% |
| Boost Clock | 1150 MHz+21% | 950 MHz |
| ROPs | 8 | 16+100% |
| TMUs | 16 | 32+100% |
| L1 Cache | 128 KB+300% | 32 KB |
| L2 Cache | 1 MB+300% | 0.25 MB |
Advanced Features (DLSS/FSR)
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| Upscaling Tech | Upscaling support | Upscaling support |
| Frame Generation | Not Supported | Not Supported |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
The GeForce 800A has 512 MB of VRAM, while the GeForce GT 620M carries 2 GB. GeForce GT 620M gives you 300% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the GeForce 800A and 128-bit on the GeForce GT 620M. L2 Cache: 1 MB (GeForce 800A) vs 0.25 MB (GeForce GT 620M) — the GeForce 800A has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| VRAM Capacity | 0.5 GB | 2 GB+300% |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bandwidth | Unknown | Unknown |
| Bus Width | 128-bit | 128-bit |
| L2 Cache | 1 MB+300% | 0.25 MB |
Display & API Support
DirectX support: 12 (11_0) (GeForce 800A) vs 12 (FL11_0) (GeForce GT 620M). Vulkan: N/A vs None. OpenGL: 4.6 vs 4.1. Maximum simultaneous displays: 2 vs 3.
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| DirectX | 12 (11_0) | 12 (FL11_0) |
| Vulkan | N/A | None |
| OpenGL | 4.6+12% | 4.1 |
| Max Displays | 2 | 3+50% |
Media & Encoding
Hardware encoder: NVENC (GeForce 800A) vs No (GeForce GT 620M). Decoder: VP5 vs PureVideo HD VP5. Supported codecs: H.264,MPEG-2,VC-1 (GeForce 800A) vs MPEG-2,H.264,VC-1,MPEG-4 ASP (GeForce GT 620M).
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| Encoder | NVENC | No |
| Decoder | VP5 | PureVideo HD VP5 |
| Codecs | H.264,MPEG-2,VC-1 | MPEG-2,H.264,VC-1,MPEG-4 ASP |
Power & Dimensions
The GeForce 800A draws 33W versus the GeForce GT 620M's 45W — a 30.8% difference. The GeForce 800A is more power-efficient. Recommended PSU: 350W (GeForce 800A) vs 350W (GeForce GT 620M). Power connectors: Legacy vs PCIe-powered. Card length: 0mm vs 0mm, occupying 0 vs 0 slots. Typical load temperature: 85 vs 80°C.
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| TDP | 33W-27% | 45W |
| Recommended PSU | 350W | 350W |
| Power Connector | Legacy | PCIe-powered |
| Length | 0mm | 0mm |
| Height | 0mm | 0mm |
| Slots | 0 | 0 |
| Temp (Load) | 85 | 80°C-6% |
| Perf/Watt | 13.2+38% | 9.6 |
Value Analysis
The newer card here is GeForce 800A (2014 vs 2012).
| Feature | GeForce 800A | GeForce GT 620M |
|---|---|---|
| MSRP | $100 | — |
| Codename | GM108 | GK107 |
| Release | July 22 2014 | March 22 2012 |
| Ranking | #832 | #828 |
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