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
GeForce GTX 295 Single PCB
CORE STATE
GT200B
VRAM
896 MB
CLOCK SPEED
—
TDP
289 W
BUS WIDTH
448 bit
ARCHITECTURE
Tesla 2.0
PROCESS
55 nm
LAUNCH DATE
2009
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GTX 295 Single PCB
Core Specs
Shading Units
640
240
-62.5%
Shaders
640
240
-62.5%
TMUs
40
80
+100.0%
ROPs
16
28
+75.0%
Compute Units
10
—
SM Count
—
30
Clocks
GPU Clock
1295 MHz
576 MHz
Shader Clock
—
1242 MHz
Memory Clock
1500 MHz
6 Gbps effective
1008 MHz
2 Gbps effective
Memory
Memory Size
4 GB
896 MB
VRAM (MB)
4,096
896
-78.1%
Memory Type
GDDR5
GDDR3
Memory Bus
128 bit
448 bit
Bandwidth
96.00 GB/s
112.9 GB/s
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
512 KB
224 KB
Performance
Pixel Rate
20.72 GPixel/s
16.13 GPixel/s
Texture Rate
51.80 GTexel/s
46.08 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
596.2 GFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
74.52 GFLOPS (1:8)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
289 W
TDP (W)
50
289
+478.0%
Suggested PSU
250 W
600 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 4.0
Tesla 2.0
GPU Name
Polaris 23
GT200B
Generation
Polaris
(RX 600)
GeForce 200
Process Size
14 nm
55 nm
Transistors
2,200 million
1,400 million
Die Size
103 mm²
470 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
3.0M / mm²
API Support
DirectX
12 (12_0)
11.1 (10_0)
OpenGL
4.6
3.3
Vulkan
1.3
—
OpenCL
2.1
1.1
CUDA
—
1.3
Shader Model
6.7
4.0
Physical
Slot Width
Single-slot
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
111 mm
4.4 inches
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
2x DVI
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Launch Price
—
499 USD
Production
End-of-life
End-of-life
Predecessor
Polaris
GeForce 9
Successor
Vega
GeForce 400