AMD Ryzen 5 PRO 4650G vs AMD Ryzen Threadripper 1900X Comparison

Head-to-Head Benchmarks

The benchmark data delivers a clear split: the AMD Ryzen Threadripper 1900X dominates every Cinebench workload, while the AMD Ryzen 5 PRO 4650G takes both Geekbench tests. The Threadripper wins 6 of 8 head-to-head matchups, but the magnitude of the 4650G's Geekbench single-core victory is the largest single delta in the entire comparison.

In Cinebench R15 multi-core, the Threadripper scores 1440 against 1379 for the 4650G, a 4.4% margin. The R15 single-core test shows a 4.6% edge (203 vs 194). Moving to Cinebench R20, the Threadripper repeats the pattern: 6000 vs 5747 in multi-core (4.4%) and 846 vs 811 in single-core (4.3%). Cinebench R23 continues the trend with 14286 vs 13685 in multi-core (4.4%) and 2016 vs 1932 in single-core (4.3%).

The consistency of the Threadripper's Cinebench advantage is notable — every delta sits between 4.3% and 4.6%. This suggests a stable architectural edge in rendering workloads rather than a test-specific anomaly. The 4650G, however, flips the script in Geekbench. Its multi-core score of 6629 edges out the Threadripper's 6588 by 0.6%, a narrow but real win. The single-core result is far more decisive: 1440 vs 1205, a 16.3% gap in favor of the 4650G.

That 16.3% single-core deficit is the Threadripper's biggest weakness. It stems from the older Zen architecture's lower per-core efficiency, and it matters in any application that relies heavily on single-threaded response. The 4650G's 4.20 GHz boost clock versus the Threadripper's 4.00 GHz helps explain the gap, but the architectural differences run deeper.

For overall positioning, the Threadripper's average benchmark score is 4073, while the 4650G sits at 3977. Both CPUs land at the 57th percentile among all CPUs, placing them in the same performance tier despite their different strengths. The Threadripper's nearest rivals include the Intel Core i5-12500TE (average 4083, -0.3% delta), the AMD Ryzen 7 PRO 2700X (4114, -1%), and the AMD Ryzen 9 5980HS (4121, -1.2%). The 4650G's nearest rivals cluster around 3971-3985, with the AMD Ryzen 7 PRO 5875U at 3971 (0.2% delta) and the Intel Xeon E-2336 at 3985 (-0.2%).

FAQ

Q: Which CPU wins more benchmark tests overall?

A: The AMD Ryzen Threadripper 1900X wins 6 of 8 head-to-head benchmarks, taking every Cinebench R15, R20, and R23 test. The AMD Ryzen 5 PRO 4650G wins only the two Geekbench tests.

Q: How large is the Threadripper's Cinebench advantage?

A: The Threadripper leads by 4.4% in Cinebench R15 multi-core, 4.6% in R15 single-core, 4.4% in R20 multi-core, 4.3% in R20 single-core, 4.4% in R23 multi-core, and 4.3% in R23 single-core. Every Cinebench delta falls within a narrow 4.3-4.6% range.

Q: Where does the 4650G achieve its biggest win?

A: In Geekbench single-core, the 4650G scores 1440 versus 1205 for the Threadripper, a 16.3% advantage. It also wins Geekbench multi-core by a slim 0.6% margin (6629 vs 6588).

Q: Do these CPUs have similar overall performance levels?

A: Yes. The Threadripper's average benchmark score is 4073, and the 4650G's is 3977. Both rank at the 57th percentile among all CPUs, indicating they occupy the same overall performance tier.

Q: What are the nearest rivals for each CPU?

A: The Threadripper's closest competitors include the Intel Core i5-12500TE (average 4083, -0.3%), the Intel Xeon E-2278G (4052, 0.5%), and the AMD Ryzen 7 PRO 2700X (4114, -1%). The 4650G's nearest rivals include the AMD Ryzen 7 PRO 5875U (3971, 0.2%), the Intel Xeon D-2733NT (3984, -0.2%), and the Intel Core i7-6900K (3970, 0.2%).

Q: Which CPU has a higher average benchmark score?

A: The Threadripper 1900X has a higher average score at 4073, compared to 3977 for the 4650G. That is a 96-point difference, roughly 2.4%.

Architecture Differences

The two processors come from different generations and use different manufacturing processes. The Threadripper 1900X is built on the Zen architecture (codename Zen, generation "Ryzen Threadripper (Zen (Whitehaven))") at a 14 nm process node from GlobalFoundries. The 4650G uses the Zen 2 architecture (codename Renoir, generation "Ryzen 5 (Zen 2 (Renoir))") at a 7 nm node from TSMC.

The Threadripper packs 8 cores and 16 threads, while the 4650G has 6 cores and 12 threads. The Threadripper's transistor count is 9,600 million across a dual-die design (2x 213 mm²), while the 4650G has 9,800 million transistors on a single 156 mm² die. The smaller 7 nm process allows the 4650G to fit more transistors in less space.

Cache configurations differ significantly. The Threadripper has 96 KB L1 per core, 512 KB L2 per core, and 32 MB of L3 cache. The 4650G has 64 KB L1 per core, 512 KB L2 per core, and only 8 MB of shared L3 cache. The Threadripper's 32 MB L3 gives it a four-fold capacity advantage, which helps in cache-sensitive workloads.

Memory support also diverges. The Threadripper uses quad-channel DDR4 with a memory bandwidth of 85.3 GB/s, while the 4650G uses dual-channel DDR4 at 51.2 GB/s. The Threadripper does not support ECC memory, but the 4650G does. PCIe capabilities differ as well: the Threadripper offers Gen 3 with 60 lanes (CPU only), while the 4650G offers Gen 3 without a lane count specified.

The Threadripper has no integrated graphics, while the 4650G includes Radeon Vega 7 integrated graphics. The Threadripper is socketed on AMD Socket SP3r2, whereas the 4650G uses AMD Socket AM4. The Threadripper has an unlocked multiplier; the 4650G does not.

Base and boost clocks favor different aspects. The Threadripper runs at 3.80 GHz base and 4.00 GHz boost, while the 4650G runs at 3.70 GHz base and 4.20 GHz boost. The 4650G's higher boost clock contributes to its single-core wins, but its lower base clock and fewer cores hold it back in multi-threaded Cinebench tests.

The Verdict

The data supports a straightforward split decision. For multi-threaded rendering workloads, the AMD Ryzen Threadripper 1900X is the clear choice. It leads every Cinebench test by a consistent 4.3-4.6% margin, and its 8 cores, 16 threads, 32 MB L3 cache, and quad-channel memory provide a structural advantage that the 4650G cannot overcome in those benchmarks.

For single-threaded performance, the AMD Ryzen 5 PRO 4650G is the better pick. Its 16.3% Geekbench single-core advantage is the largest performance gap in this comparison, and its higher 4.20 GHz boost clock combined with the newer Zen 2 architecture delivers superior per-core throughput. The 4650G also wins Geekbench multi-core, albeit by a slim 0.6% margin, showing that its architectural efficiency can offset a core-count deficit in some workloads.

The average benchmark scores place the Threadripper slightly ahead (4073 vs 3977), but both CPUs sit at the 57th percentile. Neither processor dominates the other across the board. The Threadripper's wins are broad and consistent across all Cinebench versions, while the 4650G's wins are concentrated in Geekbench.

The Threadripper's strengths are tied to its higher core count, larger cache, and wider memory bus. The 4650G's strengths come from its newer architecture, smaller process node, and higher boost clock. Users running continuous multi-threaded render workloads should favor the Threadripper. Users prioritizing snappy single-threaded response and lower power consumption (65 W TDP vs 180 W) should favor the 4650G.

The 4650G's integrated Radeon Vega 7 graphics is a decisive factor for systems without a discrete GPU, while the Threadripper requires a separate graphics card. ECC memory support on the 4650G may also appeal to certain workstation users, though the Threadripper's quad-channel bandwidth is a countervailing advantage.

Specification Differences

The two CPUs differ in nearly every core specification. The Threadripper has 8 cores and 16 threads; the 4650G has 6 cores and 12 threads. Base clocks are 3.80 GHz for the Threadripper and 3.70 GHz for the 4650G, while boost clocks are 4.00 GHz and 4.20 GHz respectively. TDPs are 180 W for the Threadripper and 65 W for the 4650G.

Sockets differ: SP3r2 for the Threadripper, AM4 for the 4650G. Process nodes are 14 nm (GlobalFoundries) versus 7 nm (TSMC). Transistor counts are close (9,600 million vs 9,800 million), but die sizes differ substantially (2x 213 mm² vs 156 mm²).

L1 cache is 96 KB per core on the Threadripper versus 64 KB per core on the 4650G. L2 cache is identical at 512 KB per core. L3 cache is 32 MB on the Threadripper versus 8 MB shared on the 4650G.

Memory buses are quad-channel on the Threadripper and dual-channel on the 4650G, with bandwidth rated at 85.3 GB/s versus 51.2 GB/s. ECC support is absent on the Threadripper and present on the 4650G. PCIe is Gen 3 with 60 lanes (CPU only) on the Threadripper, and Gen 3 without a lane count on the 4650G.

Integrated graphics are absent on the Threadripper and present as Radeon Vega 7 on the 4650G. The Threadripper has an unlocked multiplier; the 4650G is locked. Release dates are 2017-08-30 for the Threadripper and 2020-07-20 for the 4650G. The Threadripper has a launch MSRP of $549; the 4650G has no launch MSRP listed.

Where Each One Wins

The Threadripper 1900X wins in sustained multi-threaded rendering. Every Cinebench benchmark — R15, R20, and R23, both single- and multi-core — goes to the Threadripper. The multi-core margins of 4.4% across all three Cinebench versions indicate a reliable advantage for long-running render jobs. Its 32 MB L3 cache and quad-channel memory bandwidth support large working sets that would choke the 4650G's 8 MB shared L3 and dual-channel bus.

The Threadripper also wins on raw core and thread counts (8/16 vs 6/12), which translates to better scaling in heavily parallel workloads. Its unlocked multiplier offers overclocking headroom that the locked 4650G cannot match. The 60-lane PCIe Gen 3 implementation provides more expansion capability for multi-GPU or high-bandwidth peripheral configurations.

The 4650G wins in single-threaded responsiveness. Its Geekbench single-core score of 1440 crushes the Threadripper's 1205 by 16.3%, the largest delta in the entire comparison. The higher 4.20 GHz boost clock and newer Zen 2 architecture deliver superior per-core speed, which benefits everyday application launch times, web browsing, and lightly threaded productivity tasks.

The 4650G also wins on platform flexibility. Its integrated Radeon Vega 7 graphics eliminates the need for a discrete GPU, and its 65 W TDP makes it suitable for compact or lower-power systems where the 180 W Threadripper would be impractical. The AM4 socket offers broader motherboard compatibility than the SP3r2 platform. ECC memory support on the 4650G adds another use case for reliability-focused builds.

Geekbench multi-core is a narrow win for the 4650G (6629 vs 6588, 0.6%), suggesting that in certain mixed workloads, the architectural efficiency of Zen 2 can overcome the Threadripper's core-count advantage. This is the only multi-threaded test the 4650G wins, but it demonstrates that the newer architecture's IPC gains are real.

In summary: choose the Threadripper for Cinebench-class rendering, high-core-count parallelism, and memory-bandwidth-hungry tasks. Choose the 4650G for single-threaded speed, integrated graphics, lower power draw, and ECC memory support.