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 D300 vs Radeon HD 7990 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.

FirePro D300 vs Radeon HD 7990: 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 D300

2014

Why buy it

✅Costs $499 less on MSRP ($500 MSRP vs $999 MSRP).
✅Delivers 105.4% more G3D Mark for each dollar spent, at 11.4 vs 5.6 G3D/$ ($500 MSRP vs $999 MSRP).
✅33.3% more VRAM for high-resolution textures and newer games (4 GB vs 3 GB).
✅Draws 150W instead of 375W, a 225W reduction.
✅Measures 242mm instead of 305mm, a 63mm shorter card that is more SFF-friendly.

Trade-offs

❌2014 hardware with 4 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon HD 7990

2013

Why buy it

✅Competitive enough if your priority is price, power, or specific feature preference.

Trade-offs

❌Less VRAM, with 3 GB vs 4 GB for high-resolution textures and newer games.
❌2013 hardware with 3 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
❌
99.8% HIGHER MSRP
$999 MSRPvs$500 MSRP
❌Lower G3D Mark per dollar, at 5.6 vs 11.4 G3D/$ ($999 MSRP vs $500 MSRP).
❌150% higher power demand at 375W vs 150W.

Quick Answers

Which GPU is faster for gaming right now?

FirePro D300 is the faster gaming card right now based on the synthetic data we have. It leads by 2.8% in PassMark G3D (5,722 vs 5,566), which is the best performance signal available in this matchup.

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

FirePro D300 is the safer long-term pick for 2026 and beyond. The case is simple: 4 GB vs 3 GB of VRAM and a newer 2014 generation instead of 2013. That gives it more room for heavier textures and higher settings over time.

Which GPU is the better buy today?

FirePro D300 makes the most sense to buy today. It is $499 cheaper on MSRP at $500 vs $999, and it leads G3D-per-dollar by 105.4% (11.4 vs 5.6), so the value case lines up with the gaming result.

FirePro D300 vs Radeon HD 7990 Technical Specifications

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

FirePro D300

The FirePro D300 is manufactured by AMD. It was released in January 18 2014. It features the GCN 1.0 architecture. The core clock speed is 850 MHz. It has 1280 shading units. The thermal design power (TDP) is 150W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,722 points.

Radeon HD 7990

The Radeon HD 7990 is manufactured by AMD. It was released in April 24 2013. It features the GCN 1.0 architecture. The core clock ranges from 950 MHz to 1000 MHz. It has 2048 ×2 shading units. The thermal design power (TDP) is 375W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 5,566 points. Launch price was $999.

⚡

Graphics Performance

The FirePro D300 scores 5,722 and the Radeon HD 7990 reaches 5,566 in the G3D Mark benchmark — just a 2.8% difference, making them near-identical in rasterization performance. The FirePro D300 is built on GCN 1.0 while the Radeon HD 7990 uses GCN 1.0, both on a 28 nm process. Shader units: 1,280 (FirePro D300) vs 2,048 (Radeon HD 7990). Raw compute: 2.176 TFLOPS (FirePro D300) vs 4.096 TFLOPS ×2 (Radeon HD 7990).

Feature	FirePro D300	Radeon HD 7990
G3D Mark Score	5,722+3%	5,566
Architecture	GCN 1.0	GCN 1.0
Process Node	28 nm	28 nm
Shading Units	1280	2048 ×2+60%
Compute (TFLOPS)	2.176 TFLOPS	4.096 TFLOPS ×2+88%
ROPs	32	32 ×2
TMUs	80	128 ×2+60%
L1 Cache	320 KB	512 KB+60%
L2 Cache	512 KB	768 KB+50%

✨

Advanced Features (DLSS/FSR)

Feature	FirePro D300	Radeon HD 7990
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	Standard	AMD Anti-Lag

💾

Video Memory (VRAM)

The FirePro D300 has 4 GB of VRAM, while the Radeon HD 7990 carries 3 GB. FirePro D300 gives you 33.3% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bus width is 128-bit on the FirePro D300 and 384-bit x2 on the Radeon HD 7990. L2 Cache: 512 KB (FirePro D300) vs 768 KB (Radeon HD 7990) — the Radeon HD 7990 has significantly larger on-die cache to reduce VRAM reliance.

Feature	FirePro D300	Radeon HD 7990
VRAM Capacity	4 GB+33%	3 GB
Memory Type	GDDR6	GDDR5
Bus Width	128-bit	384-bit x2+200%
L2 Cache	512 KB	768 KB+50%

🖥️

Display & API Support

DirectX support: 12 (FirePro D300) vs 12 (11_1) (Radeon HD 7990). Vulkan: 1.2 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 6 vs 5.

Feature	FirePro D300	Radeon HD 7990
DirectX	12	12 (11_1)
Vulkan	1.2	1.2
OpenGL	4.6	4.6
Max Displays	6+20%	5

🎬

Media & Encoding

Hardware encoder: VCE 1.0 (FirePro D300) vs VCE 1.0 (Radeon HD 7990). Decoder: UVD 4.0 vs UVD 3.2. Supported codecs: H.264,MPEG-4,MPEG-2,VC-1 (FirePro D300) vs H.264,MPEG-2,VC-1 (Radeon HD 7990).

Feature	FirePro D300	Radeon HD 7990
Encoder	VCE 1.0	VCE 1.0
Decoder	UVD 4.0	UVD 3.2
Codecs	H.264,MPEG-4,MPEG-2,VC-1	H.264,MPEG-2,VC-1

🔌

Power & Dimensions

The FirePro D300 draws 150W versus the Radeon HD 7990's 375W — a 85.7% difference. The FirePro D300 is more power-efficient. Recommended PSU: 350W (FirePro D300) vs 750W (Radeon HD 7990). Power connectors: PCIe-powered vs 2x 8-pin. Card length: 242mm vs 305mm, occupying 1 vs 2 slots. Typical load temperature: 80°C vs 85.

Feature	FirePro D300	Radeon HD 7990
TDP	150W-60%	375W
Recommended PSU	350W-53%	750W
Power Connector	PCIe-powered	2x 8-pin
Length	242mm	305mm
Height	111mm	111mm
Slots	1-50%	2
Temp (Load)	80°C-6%	85
Perf/Watt	38.1+157%	14.8

💰

Value Analysis

At launch, the FirePro D300 came in at $500, while the Radeon HD 7990 launched at $999. On MSRP, FirePro D300 was 49.9% cheaper ($499 less). Performance per dollar on MSRP (G3D Mark / MSRP): 11.4 (FirePro D300) vs 5.6 (Radeon HD 7990) — the FirePro D300 offers 103.6% better value. The newer card here is FirePro D300 (2014 vs 2013).

Feature	FirePro D300	Radeon HD 7990
MSRP	$500-50%	$999
Performance per Dollar	11.4+104%	5.6
Codename	Pitcairn	Malta
Release	January 18 2014	April 24 2013
Ranking	#506	#412

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