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 830A vs GeForce GT 640 Rev. 2 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.

GeForce 830A vs GeForce GT 640 Rev. 2: 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 830A

2014

Why buy it

✅48.1% more average FPS across 50 tracked games in our benchmark data.
✅Draws 33W instead of 49W, a 16W reduction.
✅More future proof: Maxwell (2014−2017) on 28nm with a newer platform for upcoming games.

Trade-offs

❌2014 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
1% HIGHER MSRP
$100 MSRPvs$99 MSRP

GeForce GT 640 Rev. 2

2013

Why buy it

✅Costs $1 less on MSRP ($99 MSRP vs $100 MSRP).

Trade-offs

❌Lower average FPS than GeForce 830A across 50 tracked games in our benchmark data.
❌2013 hardware with 512 MB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌48.5% higher power demand at 49W vs 33W.

Quick Answers

Which GPU is faster for gaming right now?

GeForce 830A is the faster gaming card right now. In our data, it leads by 48.1% in average FPS across 50 tracked games in our benchmark data and by 0.4% in PassMark G3D (1,173 vs 1,168), so the answer here is pretty clean.

Which GPU is the safer long-term pick for 2026 and beyond?

GeForce 830A is the safer long-term pick for 2026 and beyond. The case is simple: a newer 2014 generation instead of 2013. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

GeForce GT 640 Rev. 2 makes the most sense to buy today. It is $1 cheaper on MSRP at $99 vs $100, and it leads G3D-per-dollar by 0.6% (11.8 vs 11.7), which is enough to swing the recommendation its way. If you are mainly targeting 1080p and some 1440p, GeForce GT 640 Rev. 2 is the easier value choice. If you care more about 1080p and some 1440p headroom, GeForce 830A has the stronger long-term case.

GeForce 830A vs GeForce GT 640 Rev. 2 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

GeForce 830A

The GeForce 830A 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: 1,173 points.

GeForce GT 640 Rev. 2

The GeForce GT 640 Rev. 2 is manufactured by NVIDIA. It was released in May 29 2013. It features the Kepler 2.0 architecture. The core clock speed is 1046 MHz. It has 384 shading units. The thermal design power (TDP) is 49W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,168 points. Launch price was $89.

⚡

Graphics Performance

The GeForce 830A scores 1,173 and the GeForce GT 640 Rev. 2 reaches 1,168 in the G3D Mark benchmark — just a 0.4% difference, making them near-identical in rasterization performance. The GeForce 830A is built on Maxwell while the GeForce GT 640 Rev. 2 uses Kepler 2.0, both on a 28 nm process. Shader units: 256 (GeForce 830A) vs 384 (GeForce GT 640 Rev. 2). Raw compute: 0.5888 TFLOPS (GeForce 830A) vs 0.8033 TFLOPS (GeForce GT 640 Rev. 2).

Feature	GeForce 830A	GeForce GT 640 Rev. 2
G3D Mark Score	1,173	1,168
Architecture	Maxwell	Kepler 2.0
Process Node	28 nm	28 nm
Shading Units	256	384+50%
Compute (TFLOPS)	0.5888 TFLOPS	0.8033 TFLOPS+36%
ROPs	8	8
TMUs	16	32+100%
L1 Cache	128 KB+300%	32 KB
L2 Cache	1 MB+669%	0.13 MB

✨

Advanced Features (DLSS/FSR)

Feature	GeForce 830A	GeForce GT 640 Rev. 2
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)

Both cards ship with 512 MB of GDDR5. Memory bus width is 128-bit on the GeForce 830A and 64-bit on the GeForce GT 640 Rev. 2. L2 Cache: 1 MB (GeForce 830A) vs 0.13 MB (GeForce GT 640 Rev. 2) — the GeForce 830A has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce 830A	GeForce GT 640 Rev. 2
VRAM Capacity	0.5 GB	0.5 GB
Memory Type	GDDR5	GDDR5
Memory Bandwidth	Unknown	Unknown
Bus Width	128-bit+100%	64-bit
L2 Cache	1 MB+669%	0.13 MB

🖥️

Display & API Support

DirectX support: 12 (11_0) (GeForce 830A) vs 12 (11_0) (GeForce GT 640 Rev. 2). Vulkan: 1.1 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 2 vs 3.

Feature	GeForce 830A	GeForce GT 640 Rev. 2
DirectX	12 (11_0)	12 (11_0)
Vulkan	1.1	1.2+9%
OpenGL	4.6	4.6
Max Displays	2	3+50%

🎬

Media & Encoding

Hardware encoder: NVENC 3.0 (GeForce 830A) vs NVENC (Kepler) (GeForce GT 640 Rev. 2). Decoder: VP6 vs PureVideo HD 5. Supported codecs: H.264,MPEG-2,VC-1 (GeForce 830A) vs H.264,MPEG-2,VC-1 (GeForce GT 640 Rev. 2).

Feature	GeForce 830A	GeForce GT 640 Rev. 2
Encoder	NVENC 3.0	NVENC (Kepler)
Decoder	VP6	PureVideo HD 5
Codecs	H.264,MPEG-2,VC-1	H.264,MPEG-2,VC-1

🔌

Power & Dimensions

The GeForce 830A draws 33W versus the GeForce GT 640 Rev. 2's 49W — a 39% difference. The GeForce 830A is more power-efficient. Recommended PSU: 350W (GeForce 830A) vs 300W (GeForce GT 640 Rev. 2). Power connectors: Legacy vs None. Card length: 0mm vs 145mm, occupying 0 vs 1 slots. Typical load temperature: 80 vs 65.

Feature	GeForce 830A	GeForce GT 640 Rev. 2
TDP	33W-33%	49W
Recommended PSU	350W	300W-14%
Power Connector	Legacy	None
Length	0mm	145mm
Height	0mm	111mm
Slots	0-100%	1
Temp (Load)	80	65-19%
Perf/Watt	35.5+49%	23.8

💰

Value Analysis

At launch, the GeForce 830A came in at $100, while the GeForce GT 640 Rev. 2 launched at $99. On MSRP, GeForce GT 640 Rev. 2 was 1% cheaper ($1 less). Performance per dollar on MSRP (G3D Mark / MSRP): 11.7 (GeForce 830A) vs 11.8 (GeForce GT 640 Rev. 2) — the GeForce GT 640 Rev. 2 offers 0.9% better value. The newer card here is GeForce 830A (2014 vs 2013).

Feature	GeForce 830A	GeForce GT 640 Rev. 2
MSRP	$100	$99-1%
Performance per Dollar	11.7	11.8
Codename	GM108	GK208
Release	July 22 2014	May 29 2013
Ranking	#832	#786

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