GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
Quadro NVS 55 PCI
CORE STATE
NV34B
VRAM
64 MB
CLOCK SPEED
—
TDP
10 W
BUS WIDTH
64 bit
ARCHITECTURE
Rankine
PROCESS
150 nm
LAUNCH DATE
2005
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
Quadro NVS 55 PCI
Core Specs
Shading Units
640
—
Shaders
640
—
TMUs
40
4
-90.0%
ROPs
16
4
-75.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
250 MHz
Memory Clock
1500 MHz
6 Gbps effective
200 MHz
400 Mbps effective
Memory
Memory Size
4 GB
64 MB
VRAM (MB)
4,096
64
-98.4%
Memory Type
GDDR5
DDR
Memory Bus
128 bit
64 bit
Bandwidth
96.00 GB/s
3.200 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
—
Performance
Pixel Rate
20.72 GPixel/s
1.000 GPixel/s
Texture Rate
51.80 GTexel/s
1.000 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
—
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
—
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
10 W
TDP (W)
50
10
-80.0%
Suggested PSU
250 W
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Rankine
GPU Name
Polaris 23
NV34B
Generation
Polaris
(RX 600)
Quadro NVS
Process Size
14 nm
150 nm
Transistors
2,200 million
45 million
Die Size
103 mm²
91 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
494.5K / mm²
API Support
DirectX
12 (12_0)
9.0a
OpenGL
4.6
1.5 (full)
2.0 (partial)
Vulkan
1.3
—
OpenCL
2.1
—
Shader Model
6.7
—
Physical
Slot Width
Single-slot
Single-slot
Length
—
168 mm
6.6 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
1x DVI1x S-Video
Bus Interface
PCIe 3.0 x8
PCI
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—