AMD Radeon RX 7650 GRE vs NVIDIA B300 Comparison

Where Each One Wins

The recorded data presents a stark contrast between these two accelerators. The AMD Radeon RX 7650 GRE is a client-focused graphics card with two published benchmark scores, while the NVIDIA B300 has no benchmark entries in the database. This makes direct performance comparison impossible from measured results alone.

The AMD Radeon RX 7650 GRE delivers 22.08 TFLOPS of FP32 compute and 22.08 TFLOPS of FP16 compute with a 1:1 ratio. Its recorded 3DMark Steel Nomad DX12 score stands at 2336 points, and its Geekbench OpenCL score reaches 83109. These measurements place the card in the 83rd percentile of all GPUs tracked in the database, with an average benchmark score of 42723.

The NVIDIA B300 belongs to a completely different segment. It is classified under "Server Blackwell (Bxx)" generation, uses the GB110 chip, and is built on the Blackwell Ultra architecture. The database shows no benchmarks for this part, and its average benchmark score is recorded as 0, placing it in the 50th percentile by default. The B300 is a server module with no display outputs, designed for datacenter workloads rather than rasterization or gaming.

The wins distribution is clear: the AMD card wins on available measured performance data, while the NVIDIA B300 wins on raw compute specifications. The B300 lists 76.99 TFLOPS of FP32 performance and 1,231.8 TFLOPS of FP16 performance with a 16:1 ratio, figures that dwarf the Radeon part. However, these are specification sheets, not benchmark results.

The use-case split is therefore defined by form factor and design intent. The Radeon RX 7650 GRE is a dual-slot, 170 W card with an 8-pin power connector and a 450 W suggested PSU. It targets conventional graphics workloads with DirectX 12 Ultimate support, OpenGL 4.6, and Vulkan 1.4. The NVIDIA B300 is an SXM module with a 1400 W TDP and an 1800 W suggested PSU, carrying no graphics API declarations and no display outputs. Its purpose is accelerated computing in server racks.

Architecture Differences

The two parts share a common foundry but diverge on nearly every architectural decision. Both use TSMC manufacturing, yet the Radeon RX 7650 GRE is built on a 6 nm process while the NVIDIA B300 uses a 5 nm process. The AMD chip, codenamed Hotpink Bonefish, belongs to the RDNA 3.0 architecture within the Navi III (RX 7000) generation. The NVIDIA B300 uses the Blackwell Ultra architecture under the GB110 chip, with its generation listed as Server Blackwell (Bxx).

Transistor counts reveal the scale gap. The Radeon RX 7650 GRE integrates 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2M per mm². The NVIDIA B300 packs 104,000 million transistors, a figure roughly 7.8 times higher, though the database does not list its die size or density.

Memory architecture differs fundamentally. The AMD card uses 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The NVIDIA B300 uses 144 GB of HBM3e on a 4096-bit bus, delivering 4.10 TB/s of bandwidth. That is a 14.2 times bandwidth advantage for the B300, paired with an 18 times memory capacity advantage.

Compute unit organization also differs. The Radeon RX 7650 GRE carries 2048 shading units, 128 texture mapping units, 64 render output units, and 32 ray accelerators. The NVIDIA B300 lists 18944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores. The ROP count is notably lower on the B300 despite its far larger shader array, consistent with a compute-focused design that does not prioritize pixel output. The B300 pixel rate is 48.77 GPixel/s versus 172.5 GPixel/s for the Radeon card, while the texture rate reverses: 1,202.9 GTexel/s for the B300 versus 345.0 GTexel/s for the AMD part.

Clock speeds show the Radeon card running much faster. The RX 7650 GRE has a 1720 MHz base clock, 2350 MHz game clock, and 2695 MHz boost clock. The B300 runs at 1665 MHz base and 2032 MHz boost. The Radeon part also has a higher memory clock at 2250 MHz (18 Gbps effective) versus 2000 MHz (8 Gbps effective) on the B300, though the bus width difference overwhelms that clock advantage.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between these two products, and the wins counters show zero for both sides. The Radeon RX 7650 GRE has two standalone benchmark results: 2336 in 3DMark Steel Nomad DX12 and 83109 in Geekbench OpenCL. The NVIDIA B300 has no benchmark scores recorded at all.

The nearest rivals for the Radeon RX 7650 GRE provide context for its measured performance. The NVIDIA GeForce RTX 4070 SUPER holds an average score of 43223, which is 1.2% higher than the Radeon card's average of 42723. The NVIDIA Quadro M6000 24 GB scores 43262, also 1.2% higher. The NVIDIA GeForce RTX 5050 Mobile scores 43268, 1.3% higher. The NVIDIA Quadro M6000 scores 43301, 1.3% higher. The Radeon RX 7650 GRE trails all four nearest rivals by a narrow margin, between 1.2% and 1.3%, placing it just below that performance cluster.

For the NVIDIA B300, no nearest rivals are listed. Its percentile of 50 reflects the absence of measurement data rather than a competitive position. The FP32 compute of 76.99 TFLOPS and FP16 compute of 1,231.8 TFLOPS are specification values that cannot be validated against the benchmark database.

Specification Differences

The two cards differ on nearly every measurable specification field. The AMD Radeon RX 7650 GRE is manufactured by AMD, belongs to the Radeon RX 7000 series, and uses the Navi 33 chip with RDNA 3.0 architecture. The NVIDIA B300 is manufactured by NVIDIA, uses the GB110 chip with Blackwell Ultra architecture, and has no series designation.

Process technology differs by one node step: 6 nm for AMD versus 5 nm for NVIDIA. Transistor count differs massively: 13,300 million versus 104,000 million. Die size is listed only for the AMD part at 204 mm². Transistor density is listed only for the AMD part at 65.2M per mm².

Memory specifications diverge completely. The AMD card has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The NVIDIA card has 144 GB of HBM3e on a 4096-bit bus with 4.10 TB/s bandwidth. Memory clock is 2250 MHz (18 Gbps effective) on AMD versus 2000 MHz (8 Gbps effective) on NVIDIA.

Compute resources differ in count and type. The AMD card has 2048 shading units, 128 TMUs, 64 ROPs, and 32 RT cores. The NVIDIA card has 18944 shading units, 592 TMUs, 24 ROPs, and 592 tensor cores. The AMD card has no tensor cores listed; the NVIDIA card has no RT cores listed.

Clock speeds favor AMD: 1720 MHz base and 2695 MHz boost versus 1665 MHz base and 2032 MHz boost for NVIDIA. The AMD card lists a game clock of 2350 MHz; the NVIDIA card has no game clock.

Rates reflect design priorities. The AMD card produces 172.5 GPixel/s and 345.0 GTexel/s. The NVIDIA card produces 48.77 GPixel/s and 1,202.9 GTexel/s. FP32 compute is 22.08 TFLOPS for AMD versus 76.99 TFLOPS for NVIDIA. FP16 compute is 22.08 TFLOPS (1:1) for AMD versus 1,231.8 TFLOPS (16:1) for NVIDIA.

Power and physical specifications differ accordingly. The AMD card draws 170 W with a 450 W suggested PSU, uses a dual-slot form factor, and connects via a single 8-pin power connector. The NVIDIA card draws 1400 W with an 1800 W suggested PSU, uses an SXM module form factor, and lists no power connectors. The AMD card uses PCIe 4.0 x8; the NVIDIA card uses PCIe 5.0 x16.

Display outputs separate the two entirely. The AMD card provides 1x HDMI 2.1a and 3x DisplayPort 2.1. The NVIDIA card provides no outputs. The AMD card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA card lists no graphics APIs.

Physical dimensions are listed only for the AMD card: 204 mm length and 115 mm height. The AMD card measures 8 inches by 4.5 inches. The NVIDIA card has no dimensions recorded.

Release dates differ by about seven months. The AMD card launched on 2025-02-06; the NVIDIA card on 2025-09-10. The AMD card's predecessor is Navi II and successor is Navi IV. The NVIDIA card's predecessor is Server Hopper and successor is Server Rubin. Both are marked as Active in production status.

The AMD card has a launch MSRP of 279 USD. The NVIDIA card has no launch MSRP listed.

FAQ

Q: Which card has higher FP32 compute performance?

A: The NVIDIA B300 lists 76.99 TFLOPS of FP32 compute, compared to 22.08 TFLOPS for the AMD Radeon RX 7650 GRE.

Q: How much memory does each card have?

A: The AMD Radeon RX 7650 GRE has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The NVIDIA B300 has 144 GB of HBM3e on a 4096-bit bus with 4.10 TB/s bandwidth.

Q: What benchmark scores are recorded for each card?

A: The AMD Radeon RX 7650 GRE scores 2336 in 3DMark Steel Nomad DX12 and 83109 in Geekbench OpenCL. The NVIDIA B300 has no benchmark scores recorded in the database.

Q: How does the AMD Radeon RX 7650 GRE compare to its nearest rivals?

A: Its average benchmark score of 42723 trails the NVIDIA GeForce RTX 4070 SUPER (43223, 1.2% higher), the NVIDIA Quadro M6000 24 GB (43262, 1.2% higher), the NVIDIA GeForce RTX 5050 Mobile (43268, 1.3% higher), and the NVIDIA Quadro M6000 (43301, 1.3% higher).

Q: What are the power requirements for each card?

A: The AMD Radeon RX 7650 GRE has a 170 W TDP with a 450 W suggested PSU. The NVIDIA B300 has a 1400 W TDP with an 1800 W suggested PSU.

Q: Which card supports display outputs?

A: The AMD Radeon RX 7650 GRE provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. The NVIDIA B300 has no display outputs.

The Verdict

The data separates these two products cleanly by intended environment. The AMD Radeon RX 7650 GRE is a client graphics card with measured benchmark results, a 279 USD launch MSRP, display outputs, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Its 83rd percentile ranking among all GPUs and narrow 1.2% to 1.3% deficit against its four nearest rivals indicate a competitive position in its segment. The card delivers 22.08 TFLOPS of FP32 compute and 22.08 TFLOPS of FP16 compute with a 1:1 ratio, making it suitable for workloads that require balanced precision handling.

The NVIDIA B300 is a server accelerator with no benchmark entries, no display outputs, and no graphics API declarations. Its specifications target high-throughput compute: 76.99 TFLOPS of FP32, 1,231.8 TFLOPS of FP16 with a 16:1 ratio, 144 GB of HBM3e memory, and 4.10 TB/s of bandwidth. The 1400 W TDP and SXM module form factor confirm its datacenter positioning. The 592 tensor cores indicate a design optimized for matrix operations, while the absence of listed RT cores and the low 24 ROP count show that rasterization is not a priority.

The choice between these cards depends entirely on the workload environment. The Radeon RX 7650 GRE suits conventional graphics tasks where measured performance, display connectivity, and standard graphics APIs are required. The NVIDIA B300 suits server-side compute tasks where memory capacity, bandwidth, and tensor throughput matter more than pixel output. The database contains no head-to-head benchmark results, so any performance comparison must rely on the specification sheets and the standalone measurements recorded for the AMD card.