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FirePro M5100 vs GeForce GTX 645

CPUCPUGPUGPU

FirePro M5100

2013Core: 725 MHzBoost: 775 MHz
Similar parts
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VS
NVIDIA

GeForce GTX 645

2010Core: 607 MHz
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Buy on Amazon

FirePro M5100 vs GeForce GTX 645 Performance Spectrum

FirePro M5100
2 GB 150
1,874
0.0%
brand logoRadeon HD 6750
brand logoRadeon HD 8670D + HD 6670 Dual
brand logoRadeon R7 M370
brand logoRadeon RX Vega 9
brand logoRadeon RX 6300M
brand logoRadeon RX 7600M
brand logoRadeon RX 7700S
brand logoRadeon RX 9060 XT 16GB
GeForce GTX 645
1 GB 200
1,880
+0.3%
brand logoGeForce 930M
brand logoGeForce 930A
brand logoGeForce GTX 660M
brand logoGeForce GTX 480M
brand logoGeForce GTX 780 Rev. 2
brand logoGeForce GTX 980
brand logoGeForce GTX 1080
brand logoTITAN V

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.

FirePro M5100 vs GeForce GTX 645: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

FirePro M5100

2013

Why buy it

  • ✅100% more VRAM for high-resolution textures and newer games (2 GB vs 1 GB).
  • ✅Draws 150W instead of 200W, a 50W reduction.
  • ✅Measures 82mm instead of 147mm, a 65mm shorter card that is more SFF-friendly.

Trade-offs

  • ❌2013 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 12.5 G3D/$ (Unknown MSRP vs $150 MSRP).

GeForce GTX 645

2010

Why buy it

  • ✅Delivers 100+% more G3D Mark for each dollar spent, at 12.5 vs 0 G3D/$ ($150 MSRP vs Unknown MSRP).

Trade-offs

  • ❌Less VRAM, with 1 GB vs 2 GB for high-resolution textures and newer games.
  • ❌2010 hardware with 1 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • ❌33.3% higher power demand at 200W vs 150W.
  • ❌79.3% longer card at 147mm vs 82mm.

Quick Answers

Which GPU is faster for gaming right now?
GeForce GTX 645 is the faster gaming card right now based on the synthetic data we have. It leads by 0.3% in PassMark G3D (1,880 vs 1,874), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
FirePro M5100 is the safer long-term pick for 2026 and beyond. The case is simple: 2 GB vs 1 GB of VRAM, a 28nm process instead of 40nm, and a newer 2013 generation instead of 2010. That gives it more room for heavier textures and higher settings over time.
Which GPU is the better buy today?
GeForce GTX 645 makes the most sense today based on the pricing and value data we have for this matchup. If you are mainly targeting 1080p and some 1440p, GeForce GTX 645 is the easier value choice. If you care more about 1080p and some 1440p headroom, FirePro M5100 has the stronger long-term case.

FirePro M5100 vs GeForce GTX 645 Technical Specifications

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

AMD

FirePro M5100

The FirePro M5100 is manufactured by AMD. It was released in October 16 2013. It features the GCN 1.0 architecture. The core clock ranges from 725 MHz to 775 MHz. It has 640 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 1,874 points.

NVIDIA

GeForce GTX 645

The GeForce GTX 645 is manufactured by NVIDIA. It was released in May 31 2010. It features the Fermi architecture. The core clock speed is 607 MHz. It has 352 shading units. The thermal design power (TDP) is 200W. Manufactured using 40 nm process technology. G3D Mark benchmark score: 1,880 points. Launch price was $279.

⚡

Graphics Performance

The FirePro M5100 scores 1,874 and the GeForce GTX 645 reaches 1,880 in the G3D Mark benchmark — just a 0.3% difference, making them near-identical in rasterization performance. The FirePro M5100 is built on GCN 1.0 while the GeForce GTX 645 uses Fermi, both on 28 nm vs 40 nm. Shader units: 640 (FirePro M5100) vs 352 (GeForce GTX 645). Raw compute: 0.992 TFLOPS (FirePro M5100) vs 0.8554 TFLOPS (GeForce GTX 645).

FeatureFirePro M5100GeForce GTX 645
G3D Mark Score
1,874
1,880
Architecture
GCN 1.0
Fermi
Process Node
28 nm
40 nm
Shading Units
640+82%
352
Compute (TFLOPS)
0.992 TFLOPS+16%
0.8554 TFLOPS
ROPs
16
32+100%
TMUs
40
44+10%
L1 Cache
160 KB
704 KB+340%
L2 Cache
256 KB
512 KB+100%
✨

Advanced Features (DLSS/FSR)

The GeForce GTX 645 gets NVIDIA DLSS, which still tends to look cleaner in motion. The FirePro M5100 leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.

FeatureFirePro M5100GeForce GTX 645
Upscaling Tech
Upscaling support
Upscaling support
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
Standard
NVIDIA Reflex
💾

Video Memory (VRAM)

The FirePro M5100 has 2 GB of VRAM, while the GeForce GTX 645 carries 1 GB. FirePro M5100 gives you 100% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 64-bit on the FirePro M5100 and 128-bit on the GeForce GTX 645. L2 Cache: 256 KB (FirePro M5100) vs 512 KB (GeForce GTX 645) — the GeForce GTX 645 has significantly larger on-die cache to reduce VRAM reliance.

FeatureFirePro M5100GeForce GTX 645
VRAM Capacity
2 GB+100%
1 GB
Memory Type
GDDR5
GDDR5
Bus Width
64-bit
128-bit+100%
L2 Cache
256 KB
512 KB+100%
🖥️

Display & API Support

DirectX support: 12 (FL11_1) (FirePro M5100) vs 11.0 (GeForce GTX 645). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 1 vs 3.

FeatureFirePro M5100GeForce GTX 645
DirectX
12 (FL11_1)+9%
11.0
Vulkan
1.2
1.2
OpenGL
4.6
4.6
Max Displays
1
3+200%
🎬

Media & Encoding

Hardware encoder: VCE 1.0 (FirePro M5100) vs NVENC (1st Gen) (GeForce GTX 645). Decoder: UVD 4.0 vs PureVideo VP5. Supported codecs: H.264,VC-1 (FirePro M5100) vs MPEG-2,VC-1,H.264,MPEG-4 (GeForce GTX 645).

FeatureFirePro M5100GeForce GTX 645
Encoder
VCE 1.0
NVENC (1st Gen)
Decoder
UVD 4.0
PureVideo VP5
Codecs
H.264,VC-1
MPEG-2,VC-1,H.264,MPEG-4
🔌

Power & Dimensions

The FirePro M5100 draws 150W versus the GeForce GTX 645's 200W — a 28.6% difference. The FirePro M5100 is more power-efficient. Recommended PSU: 350W (FirePro M5100) vs 300W (GeForce GTX 645). Power connectors: PCIe-powered vs None. Card length: 82mm vs 147mm, occupying 1 vs 1 slots. Typical load temperature: 75°C vs 80.

FeatureFirePro M5100GeForce GTX 645
TDP
150W-25%
200W
Recommended PSU
350W
300W-14%
Power Connector
PCIe-powered
None
Length
82mm
147mm
Height
70mm
111mm
Slots
1
1
Temp (Load)
75°C-6%
80
Perf/Watt
12.5+33%
9.4
💰

Value Analysis

At launch, the FirePro M5100 came in at $0, while the GeForce GTX 645 launched at $150. On MSRP, FirePro M5100 was 100+% cheaper ($150 less). Performance per dollar on MSRP (G3D Mark / MSRP): Infinity (FirePro M5100) vs 12.5 (GeForce GTX 645) — the FirePro M5100 offers Infinity% better value. The newer card here is FirePro M5100 (2013 vs 2010).

FeatureFirePro M5100GeForce GTX 645
MSRP
$0-100%
$150
Performance per Dollar
Infinity
12.5
Codename
Venus
GF100
Release
October 16 2013
May 31 2010
Ranking
#701
#618
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