Radeon HD 7790 vs Radeon Pro 555X

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.

Radeon HD 7790 vs Radeon Pro 555X 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.

Radeon HD 7790 vs Radeon Pro 555X: Pros, Cons & Final Verdict

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

Radeon HD 7790

2013

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 20.7 vs 0 G3D/$ ($149 MSRP vs Unknown MSRP).

Trade-offs

❌Lower average FPS than Radeon Pro 555X across 50 tracked games in our benchmark data.
❌2013 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Radeon Pro 555X

2018

Why buy it

✅1.7% more average FPS across 50 tracked games in our benchmark data.
✅Radeon HD 7790 is already obsolete for modern gaming, so Radeon Pro 555X is the less risky modern option long term.
✅More future proof: GCN 4.0 (2016−2020) on 14nm with a newer platform for upcoming games.

Trade-offs

❌2018 hardware with 2 GB of VRAM already sits in legacy territory for modern games.
❌Lower G3D Mark per dollar, at 0 vs 20.7 G3D/$ (Unknown MSRP vs $149 MSRP).

Quick Answers

Which GPU is faster for gaming right now?

Radeon Pro 555X is the faster gaming card right now. In our data, it leads by 1.7% in average FPS across 50 tracked games in our benchmark data. PassMark G3D leans toward Radeon HD 7790 instead at 3,090 vs 3,000, so for this question the real-game FPS result matters more than the synthetic split.

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

Radeon Pro 555X is the safer long-term pick for 2026 and beyond. The case is simple: a 14nm process instead of 28nm and a newer 2018 generation instead of 2013. That makes it the less risky pick as game demands keep moving.

Which GPU is the better buy today?

Radeon HD 7790 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, Radeon HD 7790 is the easier value choice. If you care more about 1080p and some 1440p headroom, Radeon Pro 555X has the stronger long-term case.

Radeon HD 7790 vs Radeon Pro 555X Technical Specifications

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

Radeon HD 7790

The Radeon HD 7790 is manufactured by AMD. It was released in March 22 2013. It features the GCN 2.0 architecture. The core clock speed is 1000 MHz. It has 896 shading units. The thermal design power (TDP) is 85W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 3,090 points. Launch price was $149.

Radeon Pro 555X

The Radeon Pro 555X is manufactured by AMD. It was released in July 16 2018. It features the GCN 4.0 architecture. The core clock speed is 907 MHz. It has 768 shading units. The thermal design power (TDP) is 75W. Manufactured using 14 nm process technology. G3D Mark benchmark score: 3,000 points.

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Graphics Performance

The Radeon HD 7790 scores 3,090 and the Radeon Pro 555X reaches 3,000 in the G3D Mark benchmark — just a 3% difference, making them near-identical in rasterization performance. The Radeon HD 7790 is built on GCN 2.0 while the Radeon Pro 555X uses GCN 4.0, both on 28 nm vs 14 nm. Shader units: 896 (Radeon HD 7790) vs 768 (Radeon Pro 555X). Raw compute: 1.792 TFLOPS (Radeon HD 7790) vs 1.393 TFLOPS (Radeon Pro 555X).

Feature	Radeon HD 7790	Radeon Pro 555X
G3D Mark Score	3,090+3%	3,000
Architecture	GCN 2.0	GCN 4.0
Process Node	28 nm	14 nm
Shading Units	896+17%	768
Compute (TFLOPS)	1.792 TFLOPS+29%	1.393 TFLOPS
ROPs	16	16
TMUs	56+17%	48
L1 Cache	224 KB+17%	192 KB
L2 Cache	0.25 MB	1 MB+300%
Frame Generation	FSR upscaling	FSR upscaling

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Advanced Features (DLSS/FSR)

Feature	Radeon HD 7790	Radeon Pro 555X
Upscaling Tech	FSR Upscaling / FSR 4	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	AMD Anti-Lag	AMD Anti-Lag

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Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 128-bit on the Radeon HD 7790 and 64-bit on the Radeon Pro 555X. L2 Cache: 0.25 MB (Radeon HD 7790) vs 1 MB (Radeon Pro 555X) — the Radeon Pro 555X has significantly larger on-die cache to reduce VRAM reliance.

Feature	Radeon HD 7790	Radeon Pro 555X
VRAM Capacity	2 GB	2 GB
Memory Type	GDDR5	GDDR5
Bus Width	128-bit+100%	64-bit
L2 Cache	0.25 MB	1 MB+300%

🔌

Power & Dimensions

The Radeon HD 7790 draws 85W versus the Radeon Pro 555X's 75W — a 12.5% difference. The Radeon Pro 555X is more power-efficient. Recommended PSU: 400W (Radeon HD 7790) vs 350W (Radeon Pro 555X). Power connectors: 1x 6-pin vs PCIe-powered.

Feature	Radeon HD 7790	Radeon Pro 555X
TDP	85W	75W-12%
Recommended PSU	400W	350W-13%
Power Connector	1x 6-pin	PCIe-powered
Length	183mm	—
Height	111mm	—
Slots	2	—
Temp (Load)	70	—
Perf/Watt	36.4	40.0+10%

💰

Value Analysis

At launch, the Radeon HD 7790 came in at $149, while the Radeon Pro 555X launched at $0. On MSRP, Radeon Pro 555X was 100+% cheaper ($149 less). Performance per dollar on MSRP (G3D Mark / MSRP): 20.7 (Radeon HD 7790) vs Infinity (Radeon Pro 555X) — the Radeon Pro 555X offers Infinity% better value. The newer card here is Radeon Pro 555X (2018 vs 2013).

Feature	Radeon HD 7790	Radeon Pro 555X
MSRP	$149	$0-100%
Performance per Dollar	20.7	Infinity
Codename	Bonaire	Polaris 21
Release	March 22 2013	July 16 2018
Ranking	#579	#564

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